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At least 145 records · Page 8Linked to original sources

Renal coccidiosis in interior Canada geese, Branta canadensis interior Todd, of the Mississippi Valley population.

Kidneys from 309 Interior Canada geese from three locations in the Mississippi Flyway were examined for renal coccidia. Oocysts and/or young zygotes of Eimeria sp. were found in 6.8% of goose kidneys sampled. Only one type of renal coccidian oocyst was observed. Significantly more immature geese were infected than adults; however, there was no significant difference observed between the prevalences of infection in male and female birds. A host cellular response to zygotes and oocysts was noted in the majority of infected adult geese. Heavily infected kidneys were hypertrophic with minute foci on the surface of the organ. Histological examinations showed large numbers of unsporulated oocysts accumulated in distended collecting tubules, resulting in pressure necrosis to adjacent tissue and urate retention. Zygotes were observed in the cytoplasm of tubule cells and extracellularly in interstitial tissue. Infected tubule cells were characterized by the peripheral location of the nuclei, cytoplasmic basophilia, and cellular hypertrophy. This is the first report of an Eimeria sp. in the kidneys of Canada geese of the Mississippi Valley population.

Animals↗

Effects of season and area on ectoparasites of white-tailed deer (Odocoileus virginianus) in Mississippi.

Nine species of ectoparasites (4 Acari, 2 Mallophaga, 1 Anoplura, 1 Diptera, and 1 Siphonaptera) were recovered from 126 white-tailed deer collected in northern, central, and southern Mississippi. Intensity and prevalence of adults of Ixodes scapularis and larvae, nymphs, and adults of Amblyomma americanum varied significantly over collection periods, but not between host sexes. Lipoptena mazamae occurred on deer from only one study area. Although individual deer were heavily parasitized by Tricholipeurus parallelus and T. lipeuroides, their prevalence was limited. Hoplopsyllus sp., Solenopotes sp., Amblyomma maculatum, and Dermacentor albipictus had prevalences of less than 10% and were not tested for area, host sex, and seasonal effects. The potential pathogenicity of these ectoparasite species are related to white-tailed deer in Mississippi.

Animals↗

Potential natural exposure of Mississippi sandhill cranes to aflatoxin B1.

A survey was conducted to determine if carcinogenic mycotoxins were present in foods consumed by Mississippi sandhill cranes (Grus canadensis pulla). Samples of field corn (Zea mays) (n = 111) and chufa (Cyperus esculentus) (n = 20), obtained in 1987, 1988 and 1989 on the Mississippi Sandhill Crane National Wildlife Refuge (MSCNWR) and nearby private lands were analyzed for aflatoxin B1(AB1), ochratoxin A and sterigmatocystin using thin layer chromatography. Chufa samples were negative for all three mycotoxins. Aflatoxin B1 was found in corn at concentrations from 5 to 5,000 ppb; the other mycotoxins were not found in corn. Contaminated corn was found in 72% of all corn fields, but the proportion of contaminated fields was 57 to 100% for the 3-yr period. Contamination with AB1 was greatest in corn obtained from the ground post-harvest. Overall, 32% of corn samples from the ground had levels greater than or equal to 200 ppb with a mean of 427 ppb (range = 5 to 5,000 ppb) in contaminated fields. In 1989, mean AB1 concentration in corn on the ground was 5 to 1138 ppb for individual fields. The concentration of AB1 was less than or equal to 200 ppb in all corn samples from upright stalks. The study demonstrated that AB1 is available to sandhill cranes and at levels that may pose a serious health threat.

Aflatoxin B1↗

Margolisianum bulbosum n. gen., n. sp. (Nematoda: Philometridae) from the southern flounder, Paralichthys lethostigma (Pisces: Bothidae), in Mississippi Sound, USA.

A new species of a philometrid nematode, Margolisianum bulbosum, is described from the subcutaneous tissue in the mouth (larvigerous females), head (males, ovigerous, and larvigerous females), and eye (preovigerous females) of the southern flounder, Paralichthys lethostigma, from Mississippi Sound. It is placed in a new genus diagnosed by the combination of 8 large, paired but separate cephalic papillae; no inner cephalic papillae; an esophagus with a separate, muscular anterior bulb; a prominent mononuclear esophageal gland; and variable, irregularly distributed cuticular bosses in the females, as well as a vestigial rectum, particularly in larvigerous females. Some female specimens exhibit rows of lateral grooves and longitudinal ridges near the posterior end. Males have 2 small slightly subequal spicules, a barbed gubernaculum, 4 pairs of small cephalic papillae, and a bipartite hypodermal extension within a membranous cuticle on the posterior end. Males, ovigerous females, and larvigerous females appear to be present year round in this sporadic infection in Mississippi.

Animals↗

Breast-feeding initiation: predictors, attitudes, and practices among blacks and whites in rural Mississippi.

OBJECTIVES: We attempted to determine the incidence, predictors, attitudes, and practices of breast-feeding initiation among women in a low-income rural Mississippi community. METHODS: We interviewed 420 new mothers regarding breast-feeding. RESULTS: Ninety-six women (24%) initiated breast-feeding. More whites (44%) than blacks (20%) initiated breast-feeding. Of those 96, 59% planned to breast-feed for <6 months and 38% for 6 to 12 months. Among women who breast-fed, 78% said they did so because it was healthier. Among those not breast-feeding, most (48%) specifically stated, "I have no reason," while 20% hated the idea and 19% lacked time. About 73% of all women had been encouraged to breast-feed by nonphysicians (83%). For both races, the most significant predictor was a breast-feeding friend or relative. CONCLUSION: Breast-feeding rates in the Mississippi Delta are low, especially among blacks. Effective education programs are needed to increase these rates, and such programs should include friends, spouses, relatives, and significant others.

Adult↗

The impact of Mississippi's mandatory delay law on the timing of abortion.

CONTEXT: Mississippi mandates that a woman seeking an abortion must first receive, in person, information about the fetus and alternatives to abortion. She must then wait at least 24 hours before having an abortion. It is not clear how such mandatory delay requirements affect the timing during pregnancy at which abortion occurs. METHODS: The data for analysis, from the Mississippi Department of Health, are 34,748 abortions obtained by residents in the six-year period surrounding the law's enactment in August 1992 (i.e., from August 1989 through July 1995). The records were stratified by location of the nearest provider, so abortions to women whose nearest provider is in-state comprised the "treatment group" (N = 28,975), while abortions to women whose nearest provider is in a neighboring state with no such law comprised the "control group" (N = 5,773). Probit regressions were used to assess effects on the likelihood of a second-trimester abortion, and ordinary least-squares regressions were used to determine effects on gestational age at the time of the abortion. RESULTS: After enactment of the law, the proportion of second-trimester procedures increased by 53% (from 7.5% of abortions to 11.5%) among women whose closest provider is in-state, but it increased by only 8% (from 10.5% to 11.3%) among women whose closest provider is out-of-state. And although the overall abortion rate declined among women in the treatment group over the period (from 11.3 procedures per 1,000 women aged 15-44 to 9.9), the rate of second-trimester procedures increased among these women (from 0.8 per 1,000 women aged 15-44 to 1.1). The law was independently associated with delays in obtaining an abortion: Once the law went into effect and net of all covariates, the proportion of second-trimester abortions increased by nearly three percentage points more among women living closest to an in-state provider than among those living closest to an out-of-state provider. The law increased the mean gestational age of the fetus at the time of the procedure by approximately four days. Women who live closest to abortion providers in other states were relatively unaffected by the law. CONCLUSIONS: The proportion of abortions performed later in pregnancy will probably increase if more states impose mandatory delay laws with in-person counseling requirements.

Abortion, Legal↗

The impact of zidovudine use in HIV-infected pregnant women on vertical transmission of HIV in Mississippi.

In February 1994, results of a large placebo-controlled trial of zidovudine (ZDV) use during pregnancy (ACTG 076) showed a dramatic reduction in vertical transmission of HIV. In August 1994, the Public Health Service (PHS) recommended routine ZDV use in HIV infected pregnant women and their neonates for the prevention of vertical transmission. We retrospectively reviewed vertical transmission rates of HIV in Mississippi from 1/1/90 to 8/30/94 before the PHS guidelines were released and from 9/1/94 to 12/31/97 after the PHS guidelines were released. We also reviewed data on ZDV use in HIV infected pregnant women and their neonates from 9/1/94 to 12/31/97. Antenatal, intrapartum and neonatal ZDV use increased from 61%, 59% and 73% respectively to 79%, 77% and 92% respectively. After 9/1/94, vertical transmission rates fell by 44%. Zidovudine use during pregnancy has increased in Mississippi since release of the PHS guidelines resulting in a dramatic decline in vertical transmission rates.

Anti-HIV Agents↗

Cluster of HIV-infected adolescents and young adults--Mississippi, 1999.

From February through June 1999, seven human immunodeficiency virus (HIV)-infected young persons were identified in a small town in rural Mississippi. Two persons were identified through routine voluntary HIV testing during sexually transmitted disease (STD) evaluations, and five were identified subsequently through contact investigation by the local health department. Contact investigation identified sex partners and social contacts (i.e., persons who shared social surroundings) and defined a social network of 122 sex and social contacts. Seven (9%) of 78 persons tested from the social network were HIV-infected. Within the social network, a sexual contact network of 44 persons (the seven HIV-infected persons and their sex partners) was identified. The Mississippi State Department of Health asked CDC to join the investigation to describe further the cluster and help direct prevention efforts. This report summarizes the investigation of this cluster and underscores the need for HIV prevention and treatment in rural areas.

Adolescent↗

Reducing the incidence of sudden infant death syndrome in the Delta region of Mississippi: a three-pronged approach.

Since the "Back to Sleep" campaign in 1994, which encouraged positioning infants on their backs for sleeping, the incidence of sudden infant death syndrome (SIDS) has decreased dramatically in the United states but remains high in some rural Mississippi communities. We discuss some of the hypotheses and etiologic factors of SIDS. The high incidence of SIDS in the Delta region of Mississippi could be dramatically reduced, primarily through an intensified Back to Sleep campaign. Furthermore, the importance of health education in increasing breast-feeding rates and reducing passive smoke exposure rates in this community is emphasized.

Breast Feeding↗

Hunting injuries in Mississippi.

It is clear from the data that hunting injuries in Mississippi mirror those which occur nationwide. The vast majority of these injuries are easily preventable by following common sense hunting safety rules. As with firearm injuries, tree stand injuries are clearly preventable by following common sense rules (Table 1). Most falls are due to poorly constructed or old wooden tree stands that come apart or become detached from the tree thereby causing the hunter to fall. All bolts and fasteners should be inspected and replaced if found to be defective prior to use of the stand. Old, broken or rotten lumber should be replaced. Tree stands should only be placed in healthy, mature trees with strong healthy limbs. Unfortunately, tree stand hunters seldom wear safety harnesses when hunting. These devices, when used properly (worm around the chest under both arms), can greatly decrease morbidity and mortality associated with falls. To minimize trauma, tree stands should be constructed no greater than 20 feet above ground level. Hunters should be cautioned to wear non-slip boots [table| see text] and to apply a non-slip covering to the floor of their tree stands prior to use of the stands. Other safety tips include the removal of all logs, stones or other obstructions from around the base of the tree. As with all hunters, tree stand hunters are advised to carry a compass, whistle, flashlight and cellular phone with them during their hunt. Hunting equipment, including bows and arrows and all firearms should never be carried up to the stand. This equipment should only be lifted or lowered to or from the stand with the use of a haul line. Hunters must remember the 10 commandments of gun safety (Table 2). Every firearm should be treated as if it were loaded. Firearms should not be pointed at anything other than the intended target and the muzzle must be controlled at all times. The action and barrel should be inspected prior to loading ammunition to ensure that they are clear of obstructions. The target must be clearly identified before discharging the firearm. All firearms must be kept separate from their ammunition and unloaded when not in use. Alcohol and any mind-altering substances (antihistamines, etc) must be strictly avoided when hunting. Hunters should avoid shooting at hard, flat surfaces in an attempt to prevent ricochets, should never pull a loaded gun toward themselves, and should never climb over a fence or other obstacle with a loaded firearm. Additional common sense safety precautions include the use of the "gun safety." The safety should be "on" at all times and switched off only when the rifle is sighted in, on the game just before discharge. This simple precaution may well prevent many of the accidental shootings that occur when firearms are dropped. When firearms are dropped, the hunter must carefully pick up the gun butt first while leaving the muzzle pointed toward the ground. Rifles should be left unloaded until game is sighted and should be loaded only in the immediate anticipation of discharging the firearm at game. Hunters are also advised to hunt in-groups and should notify family members or friends of the approximate time they anticipate entering and leaving the hunting area. Bright orange hunting vests have been shown to greatly increase the hunter's visibility and should always be worn when in the field during hunting season. Hunters are also advised to layer their clothing to prevent cold injuries. A backpack containing a flashlight, compass, prescription medications, first aid kit, cellular phone and high calorie foods should be taken into the field with the hunter. Bow hunters can drastically reduce injuries and death by following a few common sense rules (Table 3). All arrows should remain sheathed until prey is sighted at which time the arrow may be nocked to the bowstring. Bows should never be drawn until the hunter is ready to fire at the target. At all times, the bow and nocked arrow should be pointed in a safe direction. Reminding hunters of the major causes of accidents as well as how to prevent them will help to decrease hunting injury and death rates in Mississippi. Careful planning and safety precautions on the part of all hunters are essential to their own safety as well as that of others.

Humans↗

Prenatal smoking and birth outcomes among Mississippi residents.

In this study we examined trends within Mississippi in prenatal smoking and in the effects of such smoking on birthweight, preterm delivery, and infant mortality. The study was a retrospective cohort analysis of 120,429 singleton births in 1995-1997. We found that even though prenatal smoking is decreasing overall, it is increasing among young pregnant women aged 15-19 years. The primary effect of prenatal smoking was to lower birthweight; correspondingly, the principal effect of smoking on infant death appeared to be this decreasing of birthweight. In addition, infants of mothers who smoked during pregnancy were two and one-half times as likely to die from SIDS as were infants whose mothers did not smoke. These data demonstrate the importance of strategies such as training in smoking cessation for providers of prenatal care in Mississippi and provide a foundation for future evaluations of current aggressive anti-tobacco campaigns in the state.

Female↗

Transmission of Mycobacterium tuberculosis associated with failed completion of treatment for latent tuberculosis infection--Chickasaw County, Mississippi, June 1999-March 2002.

During June 1999-March 2002, a total of 16 tuberculosis (TB) cases were reported from Chickasaw County, Mississippi (2000 population: 19,440), corresponding to annual TB incidences of 20.5-27.6 cases per 100,000 population. In comparison, annual TB incidences for Mississippi during the same period decreased from 7.8 to 5.4 cases per 100,000 population. This report summarizes the results of an investigation of the patients and their contacts and demonstrates the need for strategies to increase the proportion of infected contacts that successfully complete treatment for latent TB infection (LTBI).

Adolescent↗

A descriptive analysis of CRRIC II results: cardiovascular risks of African-American children in Mississippi.

The burgeoning problem of overweight and obesity in US children, adolescents, and adults has reached epidemic proportions. Data from the CRRIC I study conducted in 2000 in Jackson, Mississippi among elementary African-American children indicated that 39% of the boys and 49% of the girls had BMIs at or above the 85th percentile. The current study replicated CRRIC I in a sample of 113 African American Children in the third and fourth grades in the rural town of Canton, Mississippi. Results revealed that 46% of the boys and 46% of the girls had BMI at or above the 85th percentile. Fitness profile results revealed that only 11% of the children were classified as fit, 84% were classified as fair, and 5% were deemed unfit. As in CRRIC I, health histories of grandparents were positive for the comorbities of overweight and obesity: diabetes, stroke, and heart disease. These data indicate a critical need to aggressively intervene to impact the lifestyle choices of this generation.

Adolescent↗

Primary care physicians in Mississippi: implications for rural health care.

Despite a 24% increase in Mississippi primary care physicians during the 1980s, rural areas of the state continue to be underserved with 39 of 82 counties classified as health manpower shortage areas for primary medical care. Utilizing 1980 and 1990 census data and reports from the Mississippi State Department of Health, primary care physician manpower was analyzed to determine where growth and trends occurred. Most of the primary care physician growth occurred in ten populous counties, with family physicians and general practitioners continuing to provide most of the care in the lesser populated counties. Public and private entities are exploring new and innovative methods of delivering health care to rural areas which recognize the changing professional and lifestyle expectations of today's physicians. Multispecialty primary care group practices need to be promoted and innovative financial arrangements provided. Educational systems need to recruit students from rural areas and provide more training experiences in rural areas.

Medically Underserved Area↗

Influenza vaccination in Mississippi, 1992-2003: trends, subgroup comparisons, and forecast.

OBJECTIVES: We examined longitudinal trends in relative frequency of influenza vaccination in the state of Mississippi. METHODS: An influenza vaccination questionnaire was used to assess status among 20,078 adults who were sampled in random-digit-dialed telephone surveys administered in 1992, 1993, 1995, 1997, 1999, 2001, 2002, and 2003. Time trends were evaluated using logistic regression models in which the status of influenza vaccination was regressed on the respondents' gender, race, education, and household income. RESULTS: In Mississippi, influenza vaccination rates increased substantially during 1992-2003 irrespective of gender, race/ethnicity, age, education, and household income. The increases showed a significant linear trend. Non-Hispanic blacks were significantly less likely to have been vaccinated for influenza compared to non-Hispanic whites without accounting for gender, age, education, and household income. Having a college degree was associated with higher vaccination rates among older Mississippians after adjusting for other factors. CONCLUSIONS: Although vaccination coverage is increasing, the national goal for 2010 does not appear achievable without new initiatives. Meanwhile, we should continue to provide funding for the immunization program and to educate the population regarding their compliance.

Adolescent↗

Evaluation of a fruit and vegetable distribution program--Mississippi, 2004-05 school year.

Although diets high in fruit and vegetables are associated with decreased risk for many chronic diseases, consumption of fruit and vegetables among children is below recommended levels. During the 2004-05 school year, the Mississippi Department of Education Child Nutrition Program initiated the Mississippi Fresh Fruit and Vegetable Pilot Program. The program was designed to 1) increase student access to fresh fruit and vegetables, 2) increase the degree of student preference for fruit and vegetables, and 3) increase fruit and vegetable consumption. The 25 schools selected to participate in the program distributed fresh fruit and vegetables free of charge during the school day and provided nutrition education activities to promote and support consumption of fruit and vegetables. An evaluation of the program was conducted using a pretest in the fall (before the program was implemented by the schools) and a posttest in the spring (at the end of the school year). This report summarizes the findings of that evaluation, which indicated that the program might have 1) increased the variety of fruit and vegetables ever tried by students from all three grades sampled (5th, 8th, and 10th); 2) increased the degree of preference for fruit among 8th-grade and 10th-grade students; 3) promoted positive attitudes toward eating fruit among 8th-grade students; 4) increased consumption of fruit, but not vegetables, among 8th-grade and 10th-grade students; and 5) decreased preference for fruit and vegetables, the belief that they could eat more vegetables, and willingness to try new fruit and vegetables among 5th-grade students. The results of this evaluation suggest that the distribution of fresh fruit at school free of charge to secondary school students might be an effective component of a comprehensive approach for improving student dietary behaviors; however, distribution of fresh vegetables might be more effective with changes in program implementation.

Adolescent↗

The use of the Pap smear in Mississippi.

Mississippi physicians participating in this survey generally followed the recommended guidelines for frequency of Pap smear screening in the general population and for high risk groups. While the participating physicians considered the presence of some sexually transmitted diseases to increase the risk of developing cervical cancer, many did not consider other STD's to place a patient at increased risk. Smoking was another risk factor that many physicians overlooked. Many Mississippi physicians also did not consider a Pap smear lacking endocervical cells inadequate. All physicians performing Pap smears need to be aware of the risk factors for the development of cervical cancer. There is a continuing controversy concerning the significance of certain Pap smear findings, the timing of colposcopic intervention, and the management of abnormal findings on these tests. Clinical decisions should be based on the newer concepts of degrees of dysplasia, cytological and descriptive findings, and the potential for rapid progression of lesions. Management of the abnormal Pap smear is the topic of another article in this issue of the Journal.

Adolescent↗

Renal transplantation in Mississippi.

The present article reviews the results of cadaveric renal transplantation and organ donation in Mississippi during the years 1984-88. Patient and graft survival in cadaveric renal transplantation have continued to improve since the introduction of cyclosporine as an immunosuppressive agent. In the Mississippi Transplant Program recipients of primary cadaveric renal transplants currently demonstrate 93% patient and 82.3% graft survival rates. Despite this improvement in outcome slightly more than 1% of ESRD patients in the state undergo transplantation annually compared to 7.5% nationally.

Adolescent↗