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PubMedDate not supplied

Comparative assessment of municipal wastewater disposal methods in southeast Florida.

A comparative assessment of the risks of three effluent disposal alternatives currently available to wastewater utilities in Southeast Florida is presented in this paper. The alternatives are: deep well injection and ocean outfalls following secondary treatment, and surface water (canal) discharges following secondary wastewater treatment, filtration and nutrient removal. Water quality data, relative to disposal of wastewater treatment plant effluent were gathered, along with water quality data on the receiving waters, from utilities. Comparisons and conclusions regarding potential health concerns associated with the three disposal alternatives are presented. The results indicated that health risks associated with deep wells were generally lower than those of the other two alternatives. The proximity of injection wells to aquifer storage and recovery wells was a determining factor relative to injection well risk. Urban ecological risks were also indicated to be lower, though impacts of urban water use/reuse to the Everglades were not studied. Additional data collection and analysis were recommended to understand the effects of wastewater management on the cycling of water, nutrients and other constituents on southeast Florida. In particular, it was recommended that monitoring of effluents for nitrosamines and pharmaceutically active substances be implemented on a broad scale.

Bayes Theorem↗
PubMed1992

Medicare admission criteria for diabetes mellitus in Florida.

Medicare criteria for admission of patients to hospitals are the responsibility of Peer Review Organizations in each state. In 1986, in Florida, an attempt was made to introduce stricter than previously accepted admission criteria for diabetes mellitus. The new criteria were found to be unacceptable to many physicians and potentially dangerous. This article describes how a group of endocrinologists and diabetologists were able to impact on the Florida Peer Review Organization and change the criteria to allow for more acceptable standards without jeopardizing the review process.

Blood Glucose↗
PubMed2006

Lobomycosis in Atlantic bottlenose dolphins from the Indian River Lagoon, Florida.

OBJECTIVE: To determine the prevalence of lobomycosis, a mycotic infection of dolphins and humans caused by a yeastlike organism (Lacazia loboi), among dolphins in the Indian River Lagoon in Florida. DESIGN: Cross-sectional study. ANIMALS: 146 Atlantic bottlenose dolphins. PROCEDURE: Comprehensive health assessments of bottlenose dolphins in the Indian River Lagoon of Florida (n = 75) and in estuarine waters near Charleston, SC (71), were conducted during 2003 and 2004. Bottlenose dolphins were captured, examined, and released. Skin lesions were photographed and then biopsied. Tissue sections were stained with H&E and Gomori methenamine silver stains for identification of L. loboi. RESULTS: 9 of 30 (30%) dolphins captured in the southern portion of the Indian River Lagoon had lobomycosis, whereas none of the 45 dolphins captured in the northern portion of the lagoon or of the 71 dolphins captured near Charleston, SC, did. Affected dolphins had low serum alkaline phosphatase activities and high acute-phase protein concentrations. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that lobomycosis may be occurring in epidemic proportions among dolphins in the Indian River Lagoon. Localization of the disease to the southern portion of the lagoon, an area characterized by freshwater intrusion and lower salinity, suggests that exposure to environmental stressors may be contributing to the high prevalence of the disease, but specific factors are unknown. Because only dolphins and humans are naturally susceptible to infection, dolphins may represent a sentinel species for an emerging infectious disease.

Acute-Phase Proteins↗
PubMedDate not supplied

Florida pollen review.

Pollens in Florida are most numerous in January through March and approximately 82% are tree pollens. Two of the most common trees, southern red cedar and laurel oak, do not have commercial extracts. There are relatively low pollen counts for grasses and weeds, but the season is prolonged. The low counts do not indicate that these are not important allergens since in Florida children with allergies show a high reactivity rate to these allergens. Numerous grasses that are wind-pollinated and possible allergens have not been studied. In the Urticaceae family, there is no extract for Parietaria floridana. Acalypha has not been evaluated in this region and is also present in the air surveys using more efficient sampling techniques.

Florida↗
PubMed2006

Culex coronator Dyar and Knab: a new Florida species record.

We report the first finding of Culex coronator Dyar and Knab in Florida, based on multiple adult collections from several locations in the western panhandle of Florida. GPS coordinates and habitat descriptions are given and disease implications are discussed. These records extend the known distribution of Cx. coronator from six other states (Arizona, Louisiana, Mississippi, New Mexico, Oklahoma, and Texas), and from Mexico to Argentina.

Animals↗
PubMed2006

Emergency mosquito aerial spray response to the 2004 Florida hurricanes Charley, Frances, Ivan, and Jeanne: an overview of control results.

In total, 43 aerial spray missions were conducted in 26 Florida counties to control mosquito populations after each of the 4 hurricanes making landfall in Florida in 2004. Mosquitoes were trapped before and after each spray mission to determine the percentage (%) of control for the West Nile virus vector Culex nigripalpus (64.1%), the floodwater pest mosquito Psorophora columbiae (69.7%), and for all species combined (67.7%). A discussion on these results and suggestions for future efforts are presented.

Aircraft↗
PubMed2006

Prediction of nitrogen excretion in dairy farms located in north Florida: a comparison of three models.

The increasing N concentrations in surface and groundwater in north Florida emphasize the need to identify sources of N loss and ways to reduce them. The amount of N excretion produced by dairy farms and deposited into the Suwannee River agro-ecosystem is being heavily scrutinized by regulatory agencies because it is believed to contribute significantly to the high N concentrations in water. Models developed by Van Horn and the USDA-Natural Resource and Conservation Service are used to estimate N balances on dairy farms. This study explores ways to improve these estimates by using dynamic simulation of N excretion over time. The Livestock Dynamic North Florida Dairy Farm model (LiDyNoFlo), which was created for this purpose, is described. The amount of N excretion on a dairy farm depends on crude protein in the diet, milk production, the presence of mature bulls and heifers, and seasonality of production. The LiDyNoFlo considered more variables than earlier models, and estimates of N excretion differed from those of other models. Comparisons consistently showed the LiDyNoFlo predictions of N excretion were between those predicted by the Van Horn model (upper end) and the Natural Resource and Conservation Service model (lower end). The LiDyNoFlo predicted that a 1,000-cow operation produced 324 kg of N excretion/d in February and 307 kg of N excretion/d in August because of seasonal milk production and herd dynamics. Seasonal differences in N excretion are important because they determine the opportunity for N recycling in the crop fields such that total N losses into the Suwannee River agro-ecosystem may be minimized.

Animals↗
PubMedDate not supplied

Dengue surveillance in Florida, 1997-98.

Recent dengue outbreaks in the Caribbean and Central and South America and the presence of competent mosquito vectors increase the likelihood of future autochthonous transmission in Florida. During April 1997 to March 1998, a laboratory-based active surveillance program detected 18 cases of dengue involving all four dengue serotypes. All patients reported recent travel to countries with indigenous dengue transmission. These results demonstrate that dengue infections are imported into Florida at a much higher rate than reflected by previous passive surveillance; therefore, the risk for local dengue transmission may be increasing.

Adolescent↗
PubMed2002

Drought-induced amplification of Saint Louis encephalitis virus, Florida.

We used a dynamic hydrology model to simulate water table depth (WTD) and quantify the relationship between Saint Louis encephalitis virus (SLEV) transmission and hydrologic conditions in Indian River County, Florida, from 1986 through 1991, a period with an SLEV epidemic. Virus transmission followed periods of modeled drought (specifically low WTDs 12 to 17 weeks before virus transmission, followed by a rising of the water table 1 to 2 weeks before virus transmission). Further evidence from collections of Culex nigripalpus (the major mosquito vector of SLEV in Florida) suggests that during extended spring droughts vector mosquitoes and nestling, juvenile, and adult wild birds congregate in selected refuges, facilitating epizootic amplification of SLEV. When the drought ends and habitat availability increases, the SLEV-infected Cx. nigripalpus and wild birds disperse, initiating an SLEV transmission cycle. These findings demonstrate a mechanism by which drought facilitates the amplification of SLEV and its subsequent transmission to humans.

Animals↗
PubMed2006

Influence of salinity on prevalence of the parasite Loxothylacus panopaei in the xanthid Panopeus obesus in SW Florida.

This study was conducted to examine the potential influence of salinity, a proxy for freshwater inflow, on the prevalence of the castrator parasite Loxothylacus panopaei on saltmarsh mud crabs Panopeus obesus on SW Florida oyster reefs. Spatial and seasonal patterns of the presence of potential host crabs and the prevalence of the parasite were assessed in the Caloosahatchee, Estero, and Faka Union estuaries. Lift nets (1 m2) containing 5 1 of oyster clusters were deployed on intertidal reefs at 3 sites along the salinity gradient of each estuary. Nets were deployed during 3 seasonally dry and 3 seasonally wet months for a period of 30 d. P. obesus densities tended to increase downstream in higher salinity waters, with crabs being absent from the upper station in the Caloosahatchee during both seasons and absent from the upper station of the Faka Union during wet months. Parasite prevalence was reduced upstream in each estuary during wet months compared to dry months, and for those estuaries that experienced higher relative levels of freshwater inflow. Furthermore, parasite prevalence was positively correlated with the mean salinity of capture of host crabs. Based on the distribution of P. obesus and the above patterns related to salinity, it appears that freshwater inflow and seasonal rains might regulate the prevalence of this parasite in SW Florida by creating spatiotemporal, low salinity refuges for its host.

Animals↗
PubMedDate not supplied

A description of Florida's mandatory continuing education system.

The Florida Board of Nursing feels that consumer health and welfare are influenced by the ability of nurses to offer safe care. Board members advocate the theory that currency in nursing practice is enhanced by continuous updating of knowledge and skills. To this end, the Board requires 24 contact hours of approved continuing education every two years as a license renewal condition for Florida's nurses. This article reflects a description of this system as it was in place in 1986. In-depth evaluation of the extensive continuing education database compiled since 1979 has enabled the Board to identify strengths and weaknesses of the system. As a result, modification and refinement of certain elements currently are underway.

Clinical Competence↗
PubMed1998

Cultural diversity in Florida nursing programs: a survey of deans and directors.

To determine how nursing programs in the state of Florida promote and integrate cultural diversity, a survey of deans and directors was conducted. Of 90 deans and directors surveyed, 46 (51%) responded. The ethnic composition of students and faculty in the respondents' programs was examined in comparison with that of the Florida population. Hispanics, Blacks, and Asians were found to be underrepresented in nursing faculty as compared with their proportion in the state population. The majority of deans and directors ranked the goal of promoting cultural diversity of moderate importance. The two most critical issues perceived by the respondents were the lack of cultural knowledge, sensitivity, and awareness, and the academic problems and educational deficits of minority students. In 50% of the programs surveyed, culture content was integrated throughout the curriculum. Other programs either integrated culture content in specific classes or offered a course in transcultural nursing. Although numerous approaches are currently being employed to recruit ethnically diverse faculty and students, the data suggest that more extensive and innovative efforts are needed to overcome existing barriers. As nursing faces the challenge of caring for a multicultural society in the 21st century, nursing leaders and organizations must collaborate to resolve the issues and problems revealed in this survey.

Cultural Diversity↗
PubMed1976

Endemic eastern equine encephalomyelitis in Florida: a twenty-year analysis, 1955-1974.

Research and surveillance programs relating to the circulation of eastern equine encephalomyelitis (EEE) virus in Florida between 1955 and 1974 are summarized. All available data suggest that EEE virus is 1) endemic in many Florida fresh water swamps and waterways, 2) active in a continuous cycle throughout the year with a peak between May and August, and 3) circulating in Culiseta melanura. It has been isolated also from eight other mosquito species.

Adolescent↗
PubMed1986

Experimental vertical transmission of Saint Louis encephalitis virus by Florida mosquitoes.

Vertical transmission of St. Louis encephalitis (SLE) virus to F1 larval progeny was demonstrated in 8 species of mosquitoes which occur in Florida: Culex quinquefasciatus, Cx. nigripalpus, Cx. salinarius, Cx. restuans, Cx. opisthopus, Anopheles quadrimaculatus, An. albimanus, and Aedes taeniorhynchus. Relatively high rates of such transmission were observed in Ae. taeniorhynchus and vertical transmission to F1 adult progeny and venereal transmission from males to females also were demonstrated with this species. Larval rearing temperature affected transstadial transmission of the virus in Ae. taeniorhynchus, especially to the adult stage. Such transmission was observed with a larval rearing temperature of 18 degrees C but not at 27 degrees C. Because of the abundance and distribution of Ae. taeniorhynchus in Florida, and the relatively high rates of vertical transmission of SLE virus observed in the present experiments, this mosquito species warrants further investigation as a possible overwintering host for the virus in that locality.

Aedes↗
PubMed1994

Epidemiologic aspects of a St. Louis encephalitis outbreak in Fort Walton Beach, Florida in 1980.

From July 10 through August 4, 1980, five cases of St. Louis encephalitis (SLE) occurred in and near Fort Walton Beach on the Gulf Coast of northwest Florida. These were the first cases of SLE ever reported from the Florida panhandle. To determine the extent of SLE infection in the community, sera (n = 968) were collected from patients at the local hospital and county public health unit and tested for SLE virus antibody. The SLE attack rate was highest in a centrally located impoverished census tract. There was a trend toward decreasing seroprevalence with distance from the central area of the city. Overall, seroprevalence was higher in males (prevalence ratio = 2.7) and in all areas, seroprevalence increased with age. The serosurvey results suggest that SLE has been endemic in the Fort Walton Beach area.

Adolescent↗
PubMed1998

An outbreak of cyclosporiasis in Florida in 1995: a harbinger of multistate outbreaks in 1996 and 1997.

Before 1995, only one outbreak of cyclosporiasis had been reported in the United States. To identify risk factors for Cyclospora infection acquired in Florida in 1995, we conducted a matched case-control study (24 sporadic cases and 69 controls) and retrospective cohort studies of clusters of cases associated with two May social events (attack rates = 15.4% [8 of 52] and 54.5% [6 of 11]). In univariate analysis of data from the case-control study, consumption of fresh raspberries (odds ratio [OR] = 6.0, 95% confidence interval [CI] = 1.1-31.7) and bare-handed contact with soil (OR = 5.4, 95% CI = 1.4-20.7) were associated with infection; soil contact was also implicated in multivariate analysis. For the events, mixed-fruit items that had only fresh raspberries and strawberries in common had elevated relative risks (3.7 and 4.2), but the confidence intervals overlapped 1.0. The raspberries eaten at the events and by sporadic case-patients were imported. Given the cumulative evidence of the three studies and the occurrence in 1996 and 1997 of outbreaks in North America associated with consumption of Guatemalan raspberries, food-borne transmission of Cyclospora was likely in 1995 in Florida as well.

Adolescent↗
PubMed1994

The 1990 Florida dental investigation. The press and the science.

Since human immunodeficiency virus (HIV) transmission from a dentist to six of his patients was first reported in 1990 by the Florida Department of Health and Rehabilitative Services and the Centers for Disease Control and Prevention, controversy and speculation have surrounded the investigation of that case. This controversy has been fueled by the inability to determine exactly how the transmissions occurred. Many theories have appeared in the media and have led to confusion and uncertainty about the facts of this investigation. Recently, a magazine article and a newspaper article, as well as a segment on the television newsmagazine "60 Minutes," presented information that was largely based on findings by investigators hired as part of private litigation and that cast doubt on the conclusion that the patients had been infected by the dentist. However, these reports omitted pertinent epidemiologic and laboratory evidence that shows that no other sources of HIV infection could be documented for the six dental patients. The scientific evidence indicates that the Florida dentist transmitted HIV to six of his patients.

Acquired Immunodeficiency Syndrome↗
PubMed1975

Arbovirus surveillance in Florida: wild vertebrate studies 1965-1974.

Wildlife species from 38 of Florida's 67 counties were surveyed over a 10 year period for the presence of antibody to the five major arboviruses circulating in the state. The routine screening of 7891 sera from wild birds and mammals via the hemagglutination-inhibition (H1) test with selected reactors subjected to serum neutralization testing has 1) provided information regarding geographic distribution and seasonality of circulation of these viruses 2) identified enzootic foci of infection and those species of wildlife most commonly infected and 3) documented the potential value of certain wild mammals as indicators of St. Louis Encephalitis and Venezuelan equine encephalomyelitis virus activity prior to the detection of human cases. Limited studies of Tamiami and Tensaw virus on sera from mammals collected for other purposed provided additional baseline information on the activity of these viruses in Florida mammals. Isolations of eastern equine encephalomyelitis virus were made from the heart of a loggerhead shrike (Lanius excubitor), Tensaw virus from the brain of a gray fox (Urocyon cinereoargenteus), and Keystone virus from the heart of a bluejay (Cyanocitta cristata).

Animals↗