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PubMedDate not supplied

Travelers' knowledge, attitudes, and practices on prevention of infectious diseases: results from a pilot study.

BACKGROUND: The European Travel Health Advisory Board conducted a cross-sectional pilot survey to evaluate current travel health knowledge, attitudes, and practice (KAP) and to determine where travelers going to developing countries obtain travel health information, what information they receive, and what preventive travel health measures they employ. METHOD: Trained interviewers invited passengers at the departure gates of three international airports: London Heathrow, Paris Charles de Gaulle, and Munich to respond to a self-completion questionnaire. A total of 609 responses were collected. RESULTS: The study showed that more than one-third of travelers questioned had not sought pretravel health advice and of those who did, over 20% sought advice 14 days or less prior to travel. One-third of the respondents were aged 50 or more, and 20% had planned their trip less than 2 weeks before leaving. Only a minority were able to demonstrate that they had been immunised as per the World Health Organization or national recommendations. Respondents often misperceived both the risk of malaria at the destination and recommended preventive measures. CONCLUSIONS: The results of this pilot survey provided a valuable insight into the KAP of travelers and highlighted an important educational need among those traveling to risk destinations. Strategies are needed for raising awareness of preventable travel health issues and for raising compliance with existing recommendations.

Adolescent↗
PubMed2005

The severe acute respiratory syndrome: impact on travel and tourism.

SARS and travel are intricately interlinked. Travelers belonged to those primarily affected in the early stages of the outbreak, travelers became vectors of the disease, and finally, travel and tourism themselves became the victims. The outbreak of SARS created international anxiety because of its novelty, its ease of transmission in certain settings, and the speed of its spread through jet travel, combined with extensive media coverage. The psychological impacts of SARS, coupled with travel restrictions imposed by various national and international authorities, have diminished international travel in 2003, far beyond the limitations to truly SARS hit areas. Governments and press, especially in non SARS affected areas, have been slow to strike the right balance between timely and frequent risk communication and placing risk in the proper context. Screening at airport entry points is costly, has a low yield and is not sufficient in itself. The low yield in detecting SARS is most likely due to a combination of factors, such as travel advisories which resulted in reduced travel to and from SARS affected areas, implementation of effective pre-departure screening at airports in SARS-hit countries, and a rapid decline in new cases at the time when screening was finally introduced. Rather than investing in airport screening measures to detect rare infectious diseases, investments should be used to strengthen screening and infection control capacities at points of entry into the healthcare system. If SARS reoccurs, the subsequent outbreak will be smaller and more easily contained if the lessons learnt from the recent epidemic are applied. Lessons learnt during the outbreak in relation to international travel will be discussed.

China↗
PubMed2005

Risk assessment in travel medicine.

Risk assessment is an integral part of pre-travel and post- assessment. Risk assessment largely determines what health and safety advice and interventions are given within the relevant prevailing travel health guidelines. Risk assessment needs time and depends on information, including that given by the traveller. Risk assessment also needs to be documented. Risk assessment of the traveller preferably starts before they enter the consulting room, where travellers may complete a pre-travel health questionnaire. Armed with this information, risk assessment may be assisted by access to computerised travel health databases and the published literature. Experience of travel to the destination may also assist in risk assessment and the tour operator, overseas employer or agency, the traveller or even the travel health advisers themselves may provide this information.

Delivery of Health Care↗
PubMed2000

Is travel distance a barrier to veterans' use of VA hospitals for medical surgical care?

Lengthy travel distances may explain why relatively few veterans in the United States use VA hospitals for inpatient medical/surgical care. We used two approaches to distinguish the effect of distance on VA use from other factors such as access to alternatives and veterans' characteristics. The first approach describes how disparities in travel distance to the VA are related to other characteristics of geographic areas. The second approach involved a multivariate analysis of VA use in postal zip code areas (ZCAs). We used several sources of data to estimate the number of veterans who had priority access to the VA so that use rates could be estimated. Access to hospitals was characterized by estimated travel distance to inpatient providers that typically serve each ZCA. The results demonstrate that travel distance to the VA is variable, with veterans in rural areas traveling much farther for VA care than veterans in areas of high population density. However, Medicare recipients also travel farther in areas of low population density. In some areas veterans must travel lengthy distances for VA care because VA hospitals which were built over the past few decades are not located close to areas in which veterans reside in the 1990s. The disparities in travel distance suggest inequitable access to the VA. Use of the VA decreases with increases in travel distance only up to about 15 miles, after which use is relatively insensitive to further increases in distance. The multivariate analyses indicate that those over 65 are less sensitive to distance than younger veterans, even though those over 65 are Medicare eligible and therefore have inexpensive access to alternatives. The results suggest that proximity to a VA hospital is only one of many factors determining VA use. Further research is indicated to develop an appropriate response to the needs of the small but apparently dedicated group of VA users who are traveling very long distances to obtain VA care.

Aged↗
PubMed2004

[Thromboembolic events related to travel, with the train too].

INTRODUCTION: The risk of thromboembolic events related to travel is not exclusively due to air travel. We report the case of a patient who presented pulmonary embolism after prolonged train travel. OBSERVATION: An 82 Year-old patient had a significant past history of ischemic heart disease. He traveled by train, in a sitting position, for around 12 hours from Barcelona (Spain) to Paris (France). Approximately 24 hours after the journey, he presented pain in the right leg and dyspnea, which increased during the following 48 hours. Ultrasonographic cardiac examination revealed pulmonary arterial hypertension (54mm Hg), acute right ventricular failure and showed a thrombus located in the pulmonary artery, confirming the diagnosis of pulmonary embolism. Ultrasonography diagnosed deep venous thrombosis of the right leg. Treatment with heparin and oral anticoagulant was initiated. Evolution was favorable and the patient was discharged home 14 days later. No further medical event occurred during the Year that followed. DISCUSSION: The mechanisms that precede the development of a venous thrombosis are not specific to the method of transport. Blood vessel wall lesions, venous stasis and blood clotting component abnormalities, principle elements in the development of thrombosis according to Virchow's triad, are enhanced by prolonged sitting position, during travel, whether in planes or not. The role of other risk factors, personal or depending on the condition of travel, remains unknown. Simple prophylactic measures should be widely proposed during long travel, whatever the mode of transport. CONCLUSION: The development of a venous thrombosis, enhanced by prolonged sitting position, can occur whatever the form of travel. Prophylactic measures should be widely prescribed for prolonged travel, taking in consideration personal thromboembolic risk factors and circumstances of travel.

Aged↗
PubMed1997

Compliance with malaria chemoprophylaxis and preventative measures against mosquito bites among Dutch travellers.

Self-reported compliance with a malaria chemoprophylaxis regimen of proguanil (PG) plus chloroquine (CQ) was assessed in a cohort of 547 Dutch travellers who visited a single travel clinic when travelling to various areas endemic for falciparum malaria. 503 (92%) had taken PG/CQ prophylaxis, but only 326 (60%) reported regular and uninterrupted use throughout the journey and 4 weeks afterwards. Compliance differed by travel destination and was 45% in South America, 52% in West Africa, 53% in South-east Asia, 60% in the Indian Subcontinent and 78% in East Africa. Parasitologically confirmed falciparum malaria occurred in 5 travellers (0.9%), including 3 of 24 non-compliant travellers to West Africa (12.5%). Apart from destination, independent risk factors for non-compliance were young age, extensive travel experience and adventurous travel. Compliance with protection against mosquito bites was 80% for wearing long-sleeved shirts and long-legged trousers after sunset, 73% for use of repellents, 56% for sleeping under bed nets and 37% for keeping the sleeping quarters free of mosquitoes. Although 440 travellers (80%) reported to have taken two or more of these measures at least once, only 88 (16%) had done so on a daily basis. Daily use of bed nets was reported more frequently among subjects who were non-compliant with chemoprophylaxis. Compliance regarding malaria chemoprophylaxis should be improved, particularly in high-risk areas such as Sub-saharan Africa, with extra attention to young, adventurous travellers. More emphasis should be placed on prevention of Anopheles bites.

Adult↗
PubMed2005

Travel, venous thromboembolism, and thrombophilia.

Current evidence indicates that prolonged air travel predisposes to venous thrombosis and pulmonary embolism. An effect is seen once travel duration exceeds 6 to 9 hours and becomes obvious in long-haul passengers traveling for 12 or more hours. A recent records linkage study found that increase in thrombosis rate among arriving passengers peaked during the first week and was no longer apparent after 2 weeks. Medium- to long-distance travelers have a 2- to 4-fold increase in relative thrombosis risk compared with nontravelers, but the averaged absolute risk is small (approximately one symptomatic event per 2 million arrivals, with a case-fatality rate of approximately 2%) and there is no evidence that thrombosis is more likely in economy class than in business- or first-class passengers. It remains uncertain whether and to what extent thrombosis risk is increased by short-distance air travel or prolonged travel by motorcar, train, or other means. Most travelers who develop venous thrombosis or pulmonary embolism also have one or more other predisposing risk factors that may include older age, obesity, recent injury or surgery, previous thrombosis, venous insufficiency, malignancy, hormonal therapies, or pregnancy. Limited (though theoretically plausible) evidence suggests that factor V Leiden and the prothrombin gene mutation predispose to thrombosis in otherwise healthy travelers. Given that very many passengers with such predispositions do not develop thrombosis, and a lack of prospective studies to link predisposition with disease, it is not now possible to allocate absolute thrombosis risk among intending passengers or to estimate benefit-to-risk ratios or benefit-to-cost ratios for prophylaxis. Randomized comparisons using ultrasound imaging indicate a measurable incidence of subclinical leg vein thrombosis after prolonged air travel, which appears to increase with travel duration and is reduced by graded pressure elastic support stockings. Whether this surrogate outcome measure translates into clinical benefit remains unknown, but support stockings are likely to be more effective and have less adverse effects than the use of aspirin.

Aerospace Medicine↗
PubMed2003

Delayed onset of malaria--implications for chemoprophylaxis in travelers.

BACKGROUND: Most antimalarial agents used by travelers act on the parasite's blood stage and therefore do not prevent late-onset illness, particularly that due to species that cause relapsing malaria. We examined the magnitude of this problem among Israeli and American travelers. METHODS: We examined malaria surveillance data from Israel and the United States to determine the traveler's destination, the infecting species, the type of chemoprophylaxis used, and the incubation period. RESULTS: In Israel, from 1994 through 1999, there were 300 cases of malaria among returning travelers in which one species of plasmodium could be identified. In 134 of these cases (44.7 percent), the illness developed more than two months after the traveler's return; nearly all of these cases were due to infection with Plasmodium vivax or P. ovale. In 108 of the 134 cases (80.6 percent), the patient had used an antimalarial regimen according to national guidelines. In the United States, from 1992 through 1998, there were 2822 cases of malaria among travelers in which the cause could be evaluated. Late illness developed in 987 (35.0 percent) of these travelers. The infection was due to P. vivax in 811 travelers, P. ovale in 66, P. falciparum in 59, and P. malariae in 51; 614 (62.2 percent) of those with late-onset illness had appropriately taken an effective antimalarial agent. CONCLUSIONS: In more than one third of malaria-infected travelers, the illness developed more than two months after their return. Most of these late-onset illnesses are not prevented by the commonly used and effective blood schizonticides. Agents that act on the liver phase of malaria parasites are needed for more effective prevention of malaria in travelers.

Antimalarials↗
PubMed2005

Traveler's diarrhea in the pediatric population: etiology and impact.

Children who travel are at risk of developing the same, well-known illnesses that affect adult travelers. The etiology, treatment, and actual risk of these illnesses are not well defined in children. The limited amount of data available forces clinicians to extrapolate appropriate treatment for children. Recommendations for children have not been standardized. The role and judicious use of antimicrobials in the treatment of pediatric traveler's diarrhea have evolved during recent decades and will be reviewed here. The past 2 decades have seen an unprecedented, sustained growth in travel. The epidemiology related to travel medicine has evolved to describe travelers and their illnesses more specifically. The development of the field of travel medicine has led to greater understanding and improved, targeted treatment of travel-related illnesses. Most of the data available today describe traveler's diarrhea in adults. Children traveling to distant destinations from their home country have not been well studied, yet treatment parameters exist in practice and will be reviewed here.

Anti-Bacterial Agents↗
PubMed1993

Epidemiology of travel.

The unprecedented scale and speed of contemporary international travel means that ever increasing numbers of travellers are exposed to unfamiliar infections and other hazards. Since 1973, surveillance has been conducted at the Communicable Diseases (Scotland) Unit on illnesses affecting returning travellers. This has helped define the perspective of illness associated with travel, to evaluate the effectiveness of pre-travel health advice and to develop a computerised data base designed to give advice on the prevention of travellers' illnesses. These and other epidemiological studies suggest that: (a) younger travellers experience more illness (b) the greater the climatic and cultural contrast between the traveller's country of origin and the destination country, the higher the risk (c) by far the commonest afflictions the traveller is likely to experience are diarrhoea and vomiting (d) the cost of travel-related illness in the UK is in excess of pounds 11 million.

Adolescent↗
PubMed2002

Travel and venous thrombosis.

Debate continues about whether and to what extent travel predisposes to venous thrombosis and pulmonary embolism (PE). Almost certainly, the strength of any association was greatly exaggerated in recent press reports. Conclusions from case-control studies vary, with some finding no excess of recent travel among patients with venous thromboembolism and others reporting a two-four fold excess. The strongest evidence that prolonged air travel predisposes to thrombosis comes from the travel history of people who present with PE immediately after landing. Two independent analyses suggest that the risk of early embolism increases exponentially with travel times beyond 6 hours and may reach 1:200,000 passengers traveling for more than 12 hours. The most likely explanation is venous stasis in the legs from prolonged sitting, and there is evidence (preliminary and controversial) that elastic support stockings may prevent deep vein thrombosis in people who travel long-distances. There is an urgent need for more and better studies to define the absolute hazard from travel-related thrombosis and the personal risk factors that may contribute. Without these, it is difficult to give a balanced account to people who intend to travel or to consider definitive prevention trials. Case reports suggest that in most cases, travel-related thrombosis has affected people who were also at risk because of previous thrombosis, recent injury, or other predispositions. This makes it sensible to target such "at risk" people with advice about hazards and precautions, at least until formal study validates some other approach.

Aerospace Medicine↗
PubMed1998

Primary health care needs for travel medicine training in Britain.

BACKGROUND: In the UK, travel health advice is mainly provided by practice nurses and general practitioners (GPs). The need for their improved education in travel medicine has been highlighted through previous studies and by an increasing number of requests for training. METHODS: A questionnaire-based survey of 3900 GP practices was conducted to assess training requirements and to establish the demand for an academic course in travel medicine. 1430 (37%) questionnaires were completed. RESULTS: 93% of practices provided a pretravel advice service. 87% of GPs advised an average of 10 travelers per month and only 48% immunized travelers. 98% of nurses advised and immunized an average of 28 travelers a month. 21% of GPs and two-thirds of nurses had attended one or more training sessions in travel medicine. Over 90% of the sample (83% of GPs and 98% of nurses) expressed an interest in attending a formal training program in travel medicine. Eligibility for Post Graduate Education Awards (PGEA) was important for most GPs (88%). Nurses valued approval by the English National Board for Nursing (88%) and a system of Credit Accumulation & Transfer (CATS) (82%). Funding for a course would be met in full by 18% of respondents (mainly GPs) and a further 20% would contribute to fees. Most GPs and nurses have ready access to a range of information sources, e.g., a postgraduate medical centre (85%) and a medical library (91%). Computerized access to information was feasible as 93% had a computer and 54% had a modem attached. CONCLUSIONS: The discipline of travel medicine is becoming increasingly specialized. Future practitioners will need to enhance their skills to meet the demands of today's travelers. Our results show that general practice staff are keen to develop such skills. Specialist training courses need to be expanded to meet this demand.

Communicable Disease Control↗
PubMedDate not supplied

Long- and short-haul travel by air: issues for people with diabetes on insulin.

OBJECTIVE: To determine what problems are experienced by people with diabetes mellitus traveling abroad using insulin, whether appropriate and consistent advice is available to them, and if necessary, how this advice could be improved or enhanced. DESIGN: Census study by self-administered questionnaire of patients with diabetes who use insulin attending an outpatient clinic. SETTING: Grampian Diabetes Centre, Woolmanhill Hospital, Aberdeen. PARTICIPANTS: A total of 493 patients using insulin who attended the clinic in Aberdeen over a period of 3 months. MAIN OUTCOME MEASURES: Determination of number of patients experiencing problems during travel, of number of patients seeking advice prior to travel and whether it was helpful, and of where respondents would like to access advice. RESULTS: About 10% of respondents experienced problems while traveling, mostly due to hypoglycemia. Most patients want more advice to be available at the clinic. Long-haul travelers were more likely to ask clinic staff for advice and were more willing to use a clinic Web site (70%) to access information about travel than those traveling shorter distances (54%). CONCLUSIONS: Patient education may help to reduce the incidence of problems related to travel in those with diabetes mellitus. More than 95% of patients were happy with the advice relating to travel health at the clinic but would like more to be available. It would be useful to improve the consistency of advice within the clinic, and this advice should be readily accessible by all, including fellow healthcare professionals such as General Practitioners (GPs), practice nurses, and travel clinic staff.

Adolescent↗
PubMedDate not supplied

The quality of travel clinics in the Netherlands.

BACKGROUND: In 1996, the Dutch National Coordination Center for Travelers' Health Advice (LCR) was established to improve uniformity in health advice to travelers and in the quality of national vaccination centers. In this study, we evaluate the influence of LCR guidelines on the quality of travel clinics in the Netherlands. METHODS: In 1997 and 2001, questionnaires regarding implementation of LCR quality criteria were sent to the Dutch travel clinics where most travel advice is given. In 2003, the Health Care Inspectorate surveyed all Dutch yellow fever vaccination centers including those surveyed in 1997 and 2001. The data yielded by all three surveys were included in our assessment. RESULTS: The response rate was 78, 84, and 100% in 1997, 2001, and 2003, respectively. Between 1997 and 2001, the number of travel clinics with 5,000 visitors or more increased. The LCR quality criteria are widely implemented: of the criteria surveyed in this study, 11/14 (79%) were implemented in more than 80% of the clinics in 2003. Between 1997 and 2003, vaccine management improved (eg, registration of batch numbers and monitoring of refrigerators); in more clinics, physicians were present in case of emergency and advice given by nurses was more often checked daily, but this is still only in 52% of the travel clinics. Although two thirds of the professionals working in travel medicine are nurses, only 55% of them were adequately trained in this specialty. CONCLUSIONS: Between 1997 and 2003, the LCR quality guidelines are widely implemented, but implementation can still be improved. To further improve the quality of travel clinic staff, the LCR recently started certification of basic and refresher courses for physicians and nurses working in travel medicine and now registers those completing such courses.

Communicable Disease Control↗
PubMed1997

A week in the life of a travel clinic.

International travel has increased enormously in recent years. With the greater movement of people have come increased encounters with a wide variety of diseases: malaria, dengue, cholera, typhoid fever, Ebola virus, and many more. The need for greater scope, consistency, and knowledgeability in pretravel health care to meet these challenges has been met by the emergence of the discipline of travel medicine. Travelers are well advised to become informed of the risks they face and to take steps to minimize those risks. After reviewing a traveler's medical history and a detailed itinerary, a travel medicine practitioner can offer expert advice on behavioral modifications, immunizations, and chemoprophylaxis regimens which will increase the traveler's margin of safety. The issues most frequently addressed in a travel clinic include treatment of traveler's diarrhea, malaria chemoprophylaxis, and immunizations, for hepatitis A, typhoid fever, tetanus/diphtheria, influenza, pneumococcus, hepatitis B, polio, meningococcus, measles, mumps, rubella, varicella, and rabies. Pretravel consultation must consider the age and underlying health problems of the traveler, the nature of the trip (wilderness, jungle, rural, urban, resort, or cruise), the duration of travel, and the latest available information on the site in terms of disease outbreaks, terrorism, and natural calamities.

Adolescent↗
PubMed2006

Air travel in women with lymphangioleiomyomatosis.

BACKGROUND AND OBJECTIVE: The safety of air travel in patients with pneumothorax-prone pulmonary diseases, such as lymphangioleiomyomatosis (LAM), has not been studied to any great extent. A questionnaire-based evaluation of air travel in patients with LAM was conducted to determine experiences aboard commercial aircraft. METHODS: A survey was sent to women listed in the US LAM Foundation registry (n = 389) and the UK LAM Action registry (n = 59) to assess air travel, including problems occurring during flight. Women reporting a pneumothorax in flight were followed up to ascertain further details about the incident. RESULTS: 327 (73%) women completed the survey. 308 women answered the travel section, of whom 276 (90%) had "ever" travelled by aeroplane for a total of 454 flights. 95 (35%) women had been advised by their doctor to avoid air travel. Adverse events reported included shortness of breath (14%), pneumothorax (2%, 8/10 confirmed by chest radiograph), nausea or dizziness (8%), chest pain (12%), unusual fatigue (11%), oxygen desaturation (8%), headache (9%), blue hands (2%), haemoptysis (0.4%) and anxiety (22%). 5 of 10 patients with pneumothorax had symptoms that began before the flight: 2 occurred during cruising altitude, 2 soon after landing and 1 not known. The main symptoms were severe chest pain and shortness of breath. DISCUSSION AND CONCLUSION: Adverse effects occurred during air travel in patients with LAM, particularly dyspnoea and chest pain. Hypoxaemia and pneumothorax were reported. The decision to travel should be individualised; patients with unexplained shortness of breath or chest pain before scheduled flights should not board. Patients with borderline oxygen saturations on the ground should be evaluated for supplemental oxygen therapy during flight. Although many women had been advised not to travel by air, most travelled without the occurrence of serious adverse effects.

Adult↗
PubMed1991

Air travel across four time zones in college swimmers.

Eighteen female and 22 male college swimmers were flown across four time zones in east-to-west (E-W) and west-to-east (W-E) directions. A pre- and postflight paced swim of 182.9 m at an intensity equal to 90% of the swimmers' maximal velocity was completed, and salivary cortisol, heart rate (HR), and rated perceived exertion were measured. Blood pressure, HR, muscle soreness, and mood were also assessed at rest on the day before and on the day after travel. Because training volumes for both females and males were greater (P less than 0.001) in the week before W-E than E-W travel, the W-E and E-W data were analyzed separately. Two-way repeated-measures analyses of variance revealed that pre- and postexercise cortisol decreased after E-W travel and increased after W-E travel in comparison to preflight values. Resting and exercise HR responses to air travel were small in magnitude, and their significance depended on the direction of travel. Effort sense was not altered by air travel, but significant (P less than 0.001) improvements in mood and reductions in muscle soreness were observed after E-W and W-E travel for both genders. It was concluded that 1) female and male college swimmers have similar responses to air travel and 2) air travel across four time zones during heavy swim training does not have negative physiological, perceptual, or affective consequences.

Adolescent↗
PubMed2006

Travellers' diarrhoea: contemporary approaches to therapy and prevention.

Travellers' diarrhoea remains a major public health problem, contributing to significant morbidity and disability. Because bacterial enteropathogens cause a majority of this form of diarrhoea, antibacterial drugs are effective when used in chemoprophylaxis or for empirical treatment.A review of the MEDLINE listings for travellers' diarrhoea for the past 4 years was conducted; a library of >1,000 scientific articles on the topic was also considered in developing this review. Persons who travel from industrialised countries to developing countries of the tropical and semi-tropical world are the individuals who experience travellers' diarrhoea. While diarrhoea occurs with reduced frequency among persons travelling to low-risk areas from other low- or other high-risk areas, and there remain areas of intermediate risk, this review looks primarily at the illness occurring in persons from industrialised regions visiting high-risk regions of Latin America, Africa and Southern Asia. The material reviewed deals with the high frequency of acquiring diarrhoea during international travel to high-risk areas, seen in approximately 40%, and the expected bacterial causes of illness, of which diarrhoeagenic Escherichia coli is the most important. The host risk factors associated with increased susceptibility to diarrhoea include young age, lack of previous travel to high-risk regions in the past 6 months, indiscriminate food and beverage selection patterns, and host genetics. It appears feasible to decrease the rate of illness among the travelling public by careful food and beverage selection or through chemoprophylaxis with nonabsorbed rifaximin. Chemoprophylaxis with rifaximin should help to reduce the occurrence of travellers' diarrhoea and hopefully prevent post-diarrhoea complications, including irritable bowel syndrome. Early empirical therapy with antibacterial drugs, including rifaximin, a fluoroquinolone or azithromycin, will decrease the duration of illness and return travellers more quickly to their planned activities.With collaboration between local governments and public health researchers, it may be possible to improve hygiene in areas to be visited, which may translate into reduced rates of illness. More liberal use of rifaximin prophylaxis is likely to reduce the occurrence of illness and complications of disease. Vaccines and immunoprophylactic products may be beneficial for prevention of a subset of individuals otherwise developing diarrhoea.

Anti-Bacterial Agents↗