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2.
Dis Aquat Organ ; 158: 133-141, 2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38813854

RESUMEN

A novel microsporidium was observed in wild swamp guppies Micropoecilia picta from Levera Pond within Levera National Park Grenada, West Indies. Initial observations indicated similarity with Pseudoloma neurophilia, an important pathogen in zebrafish Danio rerio. P. neurophilia exhibit broad host specifity, including members of the family Poecillidae, and both parasites infect the central nervous system. However, spore morphology and molecular phylogeny based on rDNA showed that the swamp guppy microsporidium (SGM) is distinct from P. neurophilia and related microsporidia (Microsporidium cerebralis and M. luceopercae). Spores of the SGM were smaller than others in the clade (3.6 µm long). Differences were also noted in histology; the SGM formed large aggregates of spores within neural tissues along with a high incidence of numerous smaller aggregates and single spores within the surface tissue along the ventricular spaces that extended submeninx, whereas P. neurophilia and M. cerebralis infect deep into the neuropile and cause associated lesions. Analysis of small subunit ribosomal DNA sequences showed that the SGM was <93% similar to these related microsporidia. Nevertheless, one of 2 commonly used PCR tests for P. neurophilia cross reacted with tissues infected with SGM. These data suggest that there could be other related microsporidia capable of infecting zebrafish and other laboratory fishes that are not being detected by these highly specific assays. Consequently, exclusive use of these PCR tests may not accurately diagnose other related microsporidia infecting animals in laboratory and ornamental fish facilities.


Asunto(s)
Enfermedades de los Peces , Microsporidios , Microsporidiosis , Filogenia , Poecilia , Animales , Enfermedades de los Peces/microbiología , Enfermedades de los Peces/parasitología , Microsporidios/genética , Microsporidios/aislamiento & purificación , Microsporidios/clasificación , Microsporidiosis/veterinaria , Microsporidiosis/microbiología , Grenada/epidemiología
3.
Parasitology ; 150(8): 754-759, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37184089

RESUMEN

Canine soil-transmitted helminths (STHs) cause important zoonoses in the tropics, with varying degrees of intensity of infection in humans and dogs. This study aimed to investigate the prevalence and associated risk factors for STHs in community dogs residing in Grenada, West Indies. In May 2021, 232 canine fecal samples were examined for zoonotic helminths by microscopy (following flotation), and genomic DNA from a subset of 211 of these samples were subjected to multiplex qPCR for the detection and specific identification of hookworms, Toxocara spp. and Strongyloides. Microscopic examination revealed that 46.5% (108/232, 95% CI 40­52.9), 9% (21/232, 95% CI 5.35­12.7) and 5.2% (12/232, 95% CI 2.3­8) of the samples contained eggs of Ancylostoma spp., Toxocara spp. and Trichuris vulpis, respectively. Multiplex qPCR revealed that, 42.2% (89/211, 95% CI 35.5­48.8) were positive for at least 1 zoonotic parasite. Of these, 40.8% (86/211, 95% CI 34.1­47.3) of samples tested positive for Ancylostoma spp., 36% (76/211, 95% CI 29.5­42.9) were positive for A. caninum, 13.3% (28/211, 95% CI 9­18.6) for A. ceylanicum, 5.7% for T. canis (12/211, 95% CI 2.97­8.81) and 1% (2/211, 95% CI 0­2.26) for Strongyloides spp. (identified as S. stercoralis and S. papillosus by conventional PCR-based Sanger sequencing). Using a multiple logistic regression model, a low body score and free-roaming behaviour were significant predictors of test-positivity for these parasitic nematodes in dogs (P < 0.05). Further studies of zoonotic STHs in humans should help elucidate the public health relevance of these parasites in Grenada.


Asunto(s)
Enfermedades de los Perros , Helmintos , Animales , Perros , Humanos , Ancylostoma , Enfermedades de los Perros/epidemiología , Enfermedades de los Perros/parasitología , Heces/parasitología , Grenada/epidemiología , Helmintos/clasificación , Helmintos/genética , Prevalencia , Factores de Riesgo , Toxocara , Zoonosis/epidemiología
4.
Emerg Infect Dis ; 28(9): 1870-1872, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35997602

RESUMEN

Ancylostoma ceylanicum hookworms are recognized agents of human infection in the Asia-Pacific region. We investigated prevalence of zoonotic hookworm infections in dogs in Grenada in 2021; 40.8% were infected by hookworms, including Ancylostoma ceylanicum. Surveillance of this parasite in dogs and humans is needed in tropical/subtropical countries in the Americas.


Asunto(s)
Ancylostoma , Anquilostomiasis , Ancylostomatoidea , Anquilostomiasis/epidemiología , Anquilostomiasis/parasitología , Anquilostomiasis/veterinaria , Animales , Perros , Heces/parasitología , Grenada/epidemiología , Humanos , Zoonosis/epidemiología
5.
Dis Aquat Organ ; 149: 97-108, 2022 Jun 09.
Artículo en Inglés | MEDLINE | ID: mdl-35678355

RESUMEN

Invasive red lionfish Pterois volitans (Linnaeus, 1758) represent an ongoing ecological threat within temperate and tropical waters. Relatively little is known regarding the overall health of P. volitans and their potential for spreading pathogens in non-native regions. Lionfish collected from inshore reefs of Grenada, West Indies, in 2019 and 2021 were identified as P. volitans based on cytochrome c oxidase subunit 1 barcoding. Gross and microscopic examination of tissues revealed myxozoan plasmodia in the hearts of 24/76 (31.6%) lionfish by histopathology or wet mount cytology. Further histopathologic examination revealed severe granulomatous inflammation and myofiber necrosis associated with developing plasmodia and presporogonic life stages. Fresh myxospores were morphologically and molecularly consistent with Kudoa hypoepicardialis, being quadrate in apical view with 4 valves and 4 equal polar capsules. The spore body was 5.1-7.9 (mean: 6.0) µm long, 8.1-9.8 (8.7) µm wide, and 6.9-8.5 (7.7) µm thick. Polar capsules were 2.3-2.7 (2.5) µm long and 0.9-1.6 (1.3) µm wide. 18S small subunit rDNA sequences were 99.81-99.87% similar to sequence data from the original description of the species. Novel 28S large subunit rDNA and elongation factor 2 data, which did not match any previously reported species, were provided. This is the first account of a myxozoan parasite of P. volitans, a new host record and locality for K. hypoepicardialis, and one of few reports describing pathogen-associated lesions in invasive lionfish.


Asunto(s)
Myxozoa , Perciformes , Animales , Cápsulas , ADN Ribosómico , Grenada , Especies Introducidas , Myxozoa/genética , Perciformes/parasitología
6.
BJOG ; 128(6): 1077-1086, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33040457

RESUMEN

OBJECTIVE: To evaluate pregnancy and neonatal outcomes, disease severity, and mother-to-child transmission of pregnant women with Chikungunya infection (CHIKV). DESIGN: Retrospective observational study. SETTING: Grenada. POPULATION: Women who gave birth during a Chikungunya outbreak between January 2014 and September 2015 were eligible. METHODS: This descriptive study investigated 731 mother-infant pairs who gave birth during a CHIKV outbreak. Women and infants underwent serological testing for CHIKV by ELISA. MAIN OUTCOME MEASURES: Primary outcomes: composite pregnancy complication (abruption, vaginal bleeding, preterm labour/cervical incompetence, cesarean delivery for fetal distress/abruption/placental abnormality or delivery for fetal distress) and composite neonatal morbidity. RESULTS: Of 416 mother-infant pairs, 150 (36%) had CHIKV during pregnancy, 135 (33%) had never had CHIKV, and 131 (31%) had CHIKV outside of pregnancy. Mean duration of joint pain was shorter among women infected during pregnancy (µ = 898 days, σ = 277 days) compared with infections outside of pregnancy (µ = 1064 days, σ = 244 days) (P < 0.0001). Rates of pregnancy complications (RR = 0.76, P = 0.599), intrapartum complications (RR = 1.50, P = 0.633), and neonatal outcomes were otherwise similar. Possible mother-to-child transmission occurred in two (1.3%) mother-infant pairs and two of eight intrapartum infections (25%). CONCLUSION: CHIKV infection during pregnancy may be protective against long-term joint pain sequelae that are often associated with acute CHIKV infection. Infection during pregnancy did not appear to pose a risk for pregnancy complications or neonatal health, but maternal infection just prior to delivery might have increased risk of mother-to-child transmission of CHIKV. TWEETABLE ABSTRACT: Chikungunya infection did not increase risk of pregnancy complications or adverse neonatal outcomes, unless infection was just prior to delivery.


Asunto(s)
Fiebre Chikungunya , Parto Obstétrico , Sufrimiento Fetal , Transmisión Vertical de Enfermedad Infecciosa/estadística & datos numéricos , Complicaciones Infecciosas del Embarazo , Adulto , Fiebre Chikungunya/diagnóstico , Fiebre Chikungunya/epidemiología , Fiebre Chikungunya/fisiopatología , Fiebre Chikungunya/transmisión , Virus Chikungunya/aislamiento & purificación , Parto Obstétrico/efectos adversos , Parto Obstétrico/métodos , Parto Obstétrico/estadística & datos numéricos , Brotes de Enfermedades/estadística & datos numéricos , Femenino , Sufrimiento Fetal/diagnóstico , Sufrimiento Fetal/etiología , Grenada/epidemiología , Humanos , Recién Nacido , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Complicaciones Infecciosas del Embarazo/epidemiología , Complicaciones Infecciosas del Embarazo/fisiopatología , Resultado del Embarazo/epidemiología , Pruebas Serológicas/métodos , Índice de Severidad de la Enfermedad
7.
Dermatol Surg ; 47(1): 38-41, 2021 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-32826598

RESUMEN

BACKGROUND: Dermatologic surgery services are largely absent in Africa and in Afro-Caribbean counties. In the USA, studies of people of African ancestry have demonstrated health care gaps, but there are no data for Africa nor a Afro-Caribbean country. Dermatology surgery has been largely absent from global health because there are few data to demonstrate the need. We sought to determine skin cancer tumor types, and local knowledge and perception in an Afro-Caribbean country. OBJECTIVE: We sought to determine whether there exist knowledge gaps and whether a dermatology surgery medical missions program would improve the health of Afro-Caribbean people. METHODS: First, we conducted a survey of knowledge and behaviors related to skin cancer. Second, we analyzed the number and types of tumors treated during a multi-year surgical dermatology project. RESULTS: In the survey, 62% did not know what melanoma was. Eighty-one percent did not think skin cancer is preventable. Of 163 surgical specimens, 64 were malignancies with 91% related to UV exposure. CONCLUSION: There is a need for a skin cancer treatment and education program in a country of mostly African-ancestry people.


Asunto(s)
Procedimientos Quirúrgicos Dermatologicos , Necesidades y Demandas de Servicios de Salud , Misiones Médicas , Neoplasias Cutáneas/cirugía , Adulto , Femenino , Salud Global , Grenada , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Estudios Retrospectivos , Encuestas y Cuestionarios
8.
Am Heart J ; 220: 20-28, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31765932

RESUMEN

BACKGROUND: The incidence of cardiovascular (CV) risk factors is increasing globally, with a disproportionate burden in the low and low-middle income countries (L/LMICs). Peer support, as a low-cost lifestyle intervention, has succeeded in managing chronic illness. For global CV risk reduction, limited data exists in LMICs. AIM: The GHP-CHANGE was designed as a community-based randomized trial to test the effectiveness of peer support strategy for CV risk reduction in the island of Grenada, a LMIC. METHODS: We recruited 402 adults from the Grenada Heart Project (GHP) Cohort Study of 2827 subjects with at least two CV risk factors. Subjects were randomized in a 1:1 fashion to a peer-group based intervention group (n = 206) or a self-management control group (n = 196) for 12 months. The primary outcome was the change from baseline in a composite score related to Blood pressure, Exercise, Weight, Alimentation and Tobacco (FBS, Fuster-BEWAT Score), ranging from 0 to 15 (ideal health = 15). Linear mixed-effects models were used to test for intervention effects. RESULTS: Participants mean age was 51.4 years (SD 14.5) years, two-thirds were female, and baseline mean FBS was 8.9 (SD 2.6) and 8.5 (SD 2.6) in the intervention and control group, respectively (P = .152). At post intervention, the mean FBS was higher in the intervention group compared to the control group [9.1 (SD 2.7) vs 8.5 (SD 2.6), P = .028]. When balancing baseline health profile, the between-group difference (intervention vs. control) in the change of FBS was 0.31 points (95% CI: -0.12 to 0.75; P = .154). CONCLUSIONS: The GHP-CHANGE trial showed that a peer-support lifestyle intervention program was feasible; however, it did not demonstrate a significant improvement in the FBS as compared to the control group. Further studies should assess the effects of low-cost lifestyle interventions in LMICs.


Asunto(s)
Enfermedades Cardiovasculares/prevención & control , Conductas Relacionadas con la Salud , Promoción de la Salud/métodos , Estilo de Vida , Grupo Paritario , Apoyo Social , Presión Sanguínea , Peso Corporal , Países en Desarrollo , Ejercicio Físico , Estudios de Factibilidad , Femenino , Alimentos , Grenada , Indicadores de Salud , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Autocuidado , Cese del Hábito de Fumar , Factores de Tiempo
9.
J Cancer Educ ; 35(3): 557-562, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-30788676

RESUMEN

The reduction in cervical cancer (CC) in developed countries, due mainly to Pap testing, has not filtered down to Caribbean countries including Grenada despite accessible screening. This is attributed to a lack of knowledge and low screening. Researchers in low resource settings successfully trained lay health advisors (LHAs), using theory-based, culturally relevant interventions to reverse this trend. The use of LHAs in Grenada was not documented in the literature; therefore, the purpose of this study was to implement and evaluate a culturally relevant curriculum in an effort to educate Grenadian LHAs on CC. Using convenience sampling, 8 Grenadian women were recruited from the parishes with the highest rates of CC. They participated in Woman to Woman (W2W), a 2-day CC, and human papilloma virus (HPV) prevention education program facilitated by local content experts. W2W was adapted from an evidence-based curriculum and tailored for the Grenadian context. Training consisted of modules on CC and HPV. Knowledge of LHAs was measured pre- and post-intervention. Summative evaluation was assessed using a focus group discussion. There was a significant increase in CC knowledge among LHA post-training (p < 0.05) and LHAs had positive opinions about the intervention. They had an enhanced sense of self-efficacy and valued feeling part of a team. The W2W results indicated that an evidence-based and culturally tailored educational intervention has the potential for significant gains in CC and HPV knowledge. Future research will evaluate the LHA-led CC and HPV educational intervention in the community setting.


Asunto(s)
Agentes Comunitarios de Salud/educación , Detección Precoz del Cáncer/psicología , Educación en Salud , Implementación de Plan de Salud , Promoción de la Salud/métodos , Enseñanza/estadística & datos numéricos , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Curriculum , Femenino , Grenada/epidemiología , Conocimientos, Actitudes y Práctica en Salud , Humanos , Persona de Mediana Edad , Autoeficacia , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/prevención & control , Adulto Joven
10.
Transfus Apher Sci ; 57(1): 40-45, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29249628

RESUMEN

OBJECTIVES: To estimate the associations of nationality, university program, donation history and gender, with blood donation barriers experienced by non-donating students on the day of a campus blood drive. This project focused particularly on nationality and the effect of the different blood donation cultures in the students' countries of origin. METHODS: A retrospective cohort study of 398 North American and Caribbean university students was conducted at St. George's University, Grenada, in 2010. Data were collected from non-donating students on campus while a blood drive was taking place. Log-binomial regression was used to estimate associations between the exposures of interest and donation barriers experienced by the students. RESULTS: North American (voluntary blood donation culture) students were more likely than Caribbean (replacement blood donation culture) students to experience "Lack of Time" (relative risk (RR) = 1.57; 95% confidence interval (CI): 1.19-2.07) and "Lack of Eligibility" (RR = 1.55; 95% CI: 1.08-2.22) as barriers to donation. Conversely, Caribbean students were a third as likely to state "Lack of Incentive" (RR = 0.32; 95% CI: 0.20-0.50), "Fear of Infection" (RR = 0.35; 95% CI: 0.21-0.58), and "Fear of Needles" (RR = 0.32; 95% CI: 0.21-0.48) were barriers than North American students. CONCLUSIONS: University students from voluntary blood donation cultures are likely to experience different barriers to donation than those from replacement cultures. Knowledge of barriers that students from contrasting blood donation systems face provides valuable information for blood drive promotion in university student populations that contain multiple nationalities.


Asunto(s)
Donantes de Sangre/psicología , Estudiantes/psicología , Adolescente , Adulto , Femenino , Grenada , Humanos , Masculino , Universidades
11.
Parasitol Res ; 117(4): 1195-1204, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29460140

RESUMEN

Rodents are intermediate hosts for many species of Sarcocystis. Little is known of Sarcocystis cymruensis that uses the Brown rat (Rattus norvegicus) as intermediate hosts and the domestic cat (Felis catus) as experimental definitive host. Here, we identified and described Sarcocystis cymruensis in naturally infected R. norvegicus from Grenada, West Indies. Rats (n = 167) were trapped in various locations in two parishes (St. George and St. David). Microscopic, thin (< 1 µm) walled, slender sarcocysts were found in 11 of 156 (7.0%) rats skeletal muscles by squash examination. A laboratory-raised cat fed naturally infected rat tissues excreted sporocysts that were infectious for interferon gamma gene knockout (KO) mice, but not to Swiss Webster outbred albino mice. All inoculated mice remained asymptomatic, and microscopic S. cymruensis-like sarcocysts were found in the muscles of KO mice euthanized on day 70, 116, and 189 post inoculation (p.i.). Sarcocysts from infected KO mice were infective for cats at day 116 but not at 70 days p.i. By transmission electron microscopy, the sarcocyst wall was "type 1a." Detailed morphological description of the cyst wall, metrocytes, and bradyzoites is given for the first time. Additionally, molecular data on S. cymruensis are presented also for the first time. Molecular characterization of sarcocysts 18S rDNA and 28S rDNA, ITS-1, and cox1 loci showed the highest similarity with S. rodentifelis and S. muris. In conclusion, the present study described the natural infection of S. cymruensis in Brown rat for the first time in a Caribbean country and provided its molecular characteristics.


Asunto(s)
Interferón gamma/genética , Músculos/parasitología , Oocistos/aislamiento & purificación , Sarcocystis/genética , Sarcocystis/aislamiento & purificación , Sarcocistosis/veterinaria , Animales , Gatos , ADN Intergénico/genética , Grenada , Ratones , Ratones Noqueados , Microscopía Electrónica de Transmisión , ARN Ribosómico 18S/genética , ARN Ribosómico 28S/genética , Ratas , Sarcocystis/clasificación
12.
J Environ Manage ; 210: 146-161, 2018 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-29339333

RESUMEN

Coastal communities in tropical environments are at increasing risk from both environmental degradation and climate change and require urgent local adaptation action. Evidences show coral reefs play a critical role in wave attenuation but relatively little direct connection has been drawn between these effects and impacts on shorelines. Reefs are rarely assessed for their coastal protection service and thus not managed for their infrastructure benefits, while widespread damage and degradation continues. This paper presents a systematic approach to assess the protective role of coral reefs and to examine solutions based on the reef's influence on wave propagation patterns. Portions of the shoreline of Grenville Bay, Grenada, have seen acute shoreline erosion and coastal flooding. This paper (i) analyzes the historical changes in the shoreline and the local marine, (ii) assess the role of coral reefs in shoreline positioning through a shoreline equilibrium model first applied to coral reef environments, and (iii) design and begin implementation of a reef-based solution to reduce erosion and flooding. Coastline changes in the bay over the past 6 decades are analyzed from bathymetry and benthic surveys, historical imagery, historical wave and sea level data and modeling of wave dynamics. The analysis shows that, at present, the healthy and well-developed coral reefs system in the southern bay keeps the shoreline in equilibrium and stable, whereas reef degradation in the northern bay is linked with severe coastal erosion. A comparison of wave energy modeling for past bathymetry indicates that degradation of the coral reefs better explains erosion than changes in climate and historical sea level rise. Using this knowledge on how reefs affect the hydrodynamics, a reef restoration solution is designed and studied to ameliorate the coastal erosion and flooding. A characteristic design provides a modular design that can meet specific engineering, ecological and implementation criteria. Four pilot units were implemented in 2015 and are currently being field-tested. This paper presents one of the few existing examples available to date of a reef restoration project designed and engineered to deliver risk reduction benefits. The case study shows how engineering and ecology can work together in community-based adaptation. Our findings are particularly important for Small Island States on the front lines of climate change, who have the most to gain from protecting and managing coral reefs as coastal infrastructure.


Asunto(s)
Cambio Climático , Conservación de los Recursos Naturales , Arrecifes de Coral , Animales , Antozoos , Ecosistema , Inundaciones , Grenada , Hidrodinámica
13.
Cancer Causes Control ; 28(11): 1227-1239, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28762075

RESUMEN

Very little data exist on the incidence and burden of cancer in the individual Caribbean countries. Some data are available for larger areas, reported under a bigger geographical region; Latin America and the Caribbean, but many of the individual countries are not included. One of the main reasons is a lack of official cancer registries. Data are usually collected from hospital records or private physician records, and since it is not in an official registry, these data are not always accessible for inclusion in databases such as SEER and GLOBOCAN. Grenada is one of the countries that currently does not have a registry. Our aim is to report on the incidence for head and neck cancer with subcategories; hypopharynx, oropharynx, oral cavity, salivary glands, and larynx from data collected by the sole ear nose and throat specialist over a 20-year period. The age adjusted incidence per 100,000 for these cancers, whether combined or individually, is lower than that of similar populations. The incidence in males is only slightly higher than those reported in some parts of Africa. In females, only Eastern Africa is reported to have a lower incidence than that found in our study. While the incidence of oral cancers is lower than that of African Americans, the survival rate is comparable. Socioeconomic status, lack of infrastructure, and advanced stage at diagnosis appear to be closely related to the survival rate. Incidence reports suggest that incidence of head and neck cancers in individuals of African descent is lower than other populations. It is therefore not surprising that the incidence in Grenada is relatively low, although the incidence may be underestimated.


Asunto(s)
Neoplasias de Cabeza y Cuello/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Población Negra , Femenino , Grenada/epidemiología , Grenada/etnología , Neoplasias de Cabeza y Cuello/etnología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Clase Social , Tasa de Supervivencia , Estados Unidos
14.
Epilepsy Behav ; 70(Pt A): 232-237, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28448942

RESUMEN

Epilepsy is a chronic neurological disorder that is increasingly prevalent in developing countries. It is critical to provide appropriate support to patients during seizures in order to prevent injuries. False beliefs regarding the etiology or pathogenesis of the epilepsy and inadequate health information may put patients with epilepsy or other seizure disorders at increased risk of injury. Our objective was to assess the level of epilepsy awareness amongst the general population in Grenada and educate the participants regarding proper first-aid measures. A pilot questionnaire containing a total of 25 items surveying the knowledge, attitudes, and first-aid care of epilepsy was presented to 200 adult residents of Grenada as face-to-face interviews. Study participants were recruited over a nine-month period on a voluntary basis at health fairs, in local communities, and on the campus of St. George's University. Our results indicate that 35 out of 198 (17.7%) respondents erroneously believed that medicine should be placed in a person's mouth during a seizure, and 83 out of 200 (41.5%) answered that a person who is convulsing should be held down. Furthermore, 128 out of 195 (65.6%) respondents erroneously believed that seizures occur when there is low brain activity and an additional 35 out of 199 (17.6%) regarded epilepsy as a contagious disorder. Our data suggest that persons with seizures and/or epilepsy may be at increased risk of injury in Grenada due to common misconceptions and false beliefs. It is critical that epilepsy awareness is promoted in developing countries, such as Grenada, where inadequate health information may be common.


Asunto(s)
Países en Desarrollo , Epilepsia/epidemiología , Epilepsia/terapia , Primeros Auxilios/métodos , Conocimientos, Actitudes y Práctica en Salud , Encuestas y Cuestionarios , Adolescente , Adulto , Anciano , Concienciación , Epilepsia/diagnóstico , Femenino , Grenada , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Distribución Aleatoria , Convulsiones , Adulto Joven
15.
Foodborne Pathog Dis ; 14(7): 419-425, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28650672

RESUMEN

Infections caused by Campylobacter species pose a severe threat to public health worldwide. However, in Grenada, the occurrence and characteristics of Campylobacter in food animals, including pigs, remain mostly unknown. In this study, we identified the sequence types (STs) of Campylobacter from young healthy pigs in Grenada and compared the results with previous studies in Grenada and other countries. Antimicrobial resistance patterns and diversity of the Campylobacter clones were evaluated. Ninety-nine Campylobacter isolates (97 Campylobacter coli and 2 Campylobacter jejuni) were analyzed by multilocus sequence typing. Eighteen previously reported STs and 13 novel STs were identified. Of the 18 previously reported STs, eight STs (ST-854, -887, -1068, -1096, -1445, -1446, 1556, and -1579) have been associated with human gastroenteritis in different geographical regions. Among these 18 previously reported STs, ST-1428, -1096, -1450, and -1058 predominated and accounted for 18.2%, 14.1%, 11.1%, and 8.1% of all isolates, respectively. Of the 13 novel STs, ST-7675 predominated and accounted for 20% (4 of 20 isolates), followed by ST-7678, -7682, and -7691, each accounting for 10% (2 of 20 isolates). Antimicrobial resistance testing using Epsilometer test revealed a low resistance rate (1-3%) of all C. coli/jejuni STs to all antimicrobials except for tetracycline (1-10.1%). Some of the C. coli STs (13 STs, 24/99 isolates, 24.2%) were resistant to multiple antimicrobials. This is the first report on antimicrobial resistance and multidrug resistance patterns associated with Campylobacter STs recovered from swine in Grenada. This study showed that pigs in Grenada are not major reservoirs for STs of C. coli and C. jejuni that are associated with human gastroenteritis worldwide.


Asunto(s)
Infecciones por Campylobacter/epidemiología , Campylobacter/aislamiento & purificación , Gastroenteritis/epidemiología , Animales , Antibacterianos/farmacología , Campylobacter/clasificación , Campylobacter/efectos de los fármacos , Infecciones por Campylobacter/tratamiento farmacológico , Infecciones por Campylobacter/veterinaria , Campylobacter coli/efectos de los fármacos , Campylobacter coli/aislamiento & purificación , Campylobacter jejuni/efectos de los fármacos , Campylobacter jejuni/aislamiento & purificación , Clonación Molecular , ADN Bacteriano/aislamiento & purificación , Pruebas Antimicrobianas de Difusión por Disco , Farmacorresistencia Bacteriana Múltiple/genética , Gastroenteritis/tratamiento farmacológico , Gastroenteritis/microbiología , Genotipo , Grenada/epidemiología , Pruebas de Sensibilidad Microbiana , Tipificación de Secuencias Multilocus , Análisis de Secuencia de ADN , Porcinos , Tetraciclina/farmacología
16.
BMC Med Educ ; 17(1): 225, 2017 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-29162061

RESUMEN

BACKGROUND: With an aging American population, the burden of neurologic disease is intensifying and the decline in neurology residents and practicing neurologists is leaving these patients helpless and unable to find care. 'Neurophobia', a chronic illness that begins early in medical school, has been identified as a cause for the low number of neurology residents. METHODS: A longitudinal study surveyed medical students at the beginning of their first year (M1) and then again at the beginning of their second year (M2). Three neuroscience educational interventions were studied: team based learning (TBL), case based teaching (CBT), and problem based learning (PBL). Participants provided self-reported neurophobia levels, attitudes about neuroscience, and the effectiveness of educational interventions. RESULTS: A total of 446 students during M1 and 206 students during M2 participated in the survey. A significant change in self-reported neurophobia (p = 0.035) was observed from 19% in M1 to 26% in M2. Neuroscience knowledge and confidence managing a neurologic condition also significantly increased (p < 0.001 and p = 0.038 respectively). Perceived interest, difficulty, and desire to pursue a career in neuroscience did not a change significantly. Majority of students perceived CBT (76%), TBL (56%), and PBL (66%) beneficial. Only CBT demonstrated a statistical difference (p = 0.026) when stratified by self-reported change in neurophobia. CONCLUSION: An increase in neurophobia after completing a neuroscience was observed but the prevalence rate of 26% was lower than previous studies. Knowledge about neuroscience increased significantly and educational interventions were considered beneficial by students. Thus, interventions that increase knowledge and decrease neurophobia can lead to an increase in students pursuing neurology residencies.


Asunto(s)
Actitud del Personal de Salud , Selección de Profesión , Neurología/educación , Neurociencias/educación , Estudiantes de Medicina/psicología , Adulto , Educación de Pregrado en Medicina/métodos , Femenino , Grenada , Humanos , Estudios Longitudinales , Masculino , Trastornos Fóbicos , Aprendizaje Basado en Problemas , Autoinforme , Estadísticas no Paramétricas , Adulto Joven
17.
Rev Panam Salud Publica ; 41: e57, 2017 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-28902270

RESUMEN

In June 2014, the first cases of chikungunya virus (CHIKV) were diagnosed on the island of Carriacou, part of the tri-island state of Grenada. In the three months that followed, CHIKV spread rapidly, with conservative estimates of the population infected of at least 60%. Multiple challenges were encountered in the battle to manage the spread and impact of this high-attack rate virus, including 1) limited indigenous laboratory diagnostic capabilities; 2) an under-resourced health care system; 3) a skeptical general public, hesitant to accept facts about the origin and mode of transmission of the new virus; and 4) resistance to the vector control strategies used. Lessons learned from the outbreak included the need for 1) a robust and reliable epidemiological surveillance system; 2) effective strategies for communicating with the general population; 3) exploration of other methods of mosquito vector control; and 4) a careful review of all health care policies and protocols to ensure that effective, organized responses are triggered when an infectious outbreak occurs.


Asunto(s)
Fiebre Chikungunya/epidemiología , Fiebre Chikungunya/prevención & control , Salud Pública , Epidemias , Grenada/epidemiología , Humanos
18.
J Cancer Educ ; 32(3): 634-639, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26864438

RESUMEN

Oral cancer is the most common of head and neck tumours. Dentists have an important role in the most effective prevention measures: controlling aetiological factors and early detection. Dental curriculum has suffered changes in their structures and contents during Bologna process. The aim of this study is to explore oral cancer knowledge and attitudes among dental students of Granada after the implementation of the Bologna plan. A cross-sectional study was carried out in the School of Dentistry of the University of Granada. A questionnaire was delivered to dental students in the fourth and fifth years (of study) to assess knowledge and attitudes about oral cancer area. 79.3 % related that they examined the oral mucosa from their patients regularly. Almost the whole sample (95.9 %) said that they would advise their patients about risk factors for oral cancer when they graduated. Tobacco followed by alcohol was the main oral cancer risk factor identified (94.2 and 72.7 %, respectively). 96.7 % of the sample would like to receive more information about this subject. Fourth year students had taught self-examination for early detection of oral cancer more frequently than fifth year students (42.5 versus 22.9 %, respectively). The results of this study revealed that dental students had good attitudes in the area of oral cancer. On the other hand, it highlights the need for an improvement of the teaching program regarding risk factors for oral cancer and performing routine oral examination.


Asunto(s)
Actitud del Personal de Salud , Conocimientos, Actitudes y Práctica en Salud , Neoplasias de la Boca/prevención & control , Estudiantes de Odontología/psicología , Estudios Transversales , Detección Precoz del Cáncer , Femenino , Grenada , Humanos , Masculino , Factores de Riesgo , Encuestas y Cuestionarios , Adulto Joven
19.
Caries Res ; 50 Suppl 1: 68-77, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27100682

RESUMEN

UNLABELLED: This paper describes an innovative public health intervention, called 'Smile Grenada', targeting the oral health of children in Grenada utilizing the resources of a US dental school, several oral health care companies, local governmental and public health authorities, and Grenadian school personnel. METHODS: Preintervention visual/tactile caries examinations were collected from 1,092 schoolchildren (mean age 9.9 years, standard deviation, SD = 3.7) in 2010. The intervention included: (1) classroom-based toothbrushing with fluoridated toothpaste, (2) fluoride varnish applied by trained dental students, teachers and local providers 3 times a year and (3) glass ionomer sealants placed on first permanent molars in children aged 6-8 years. Postintervention data were collected in May, 2013 (n = 2,301, mean age 9.8 years, SD = 3.7). Decayed and demineralized surfaces were examined for the whole sample and decay/demineralization and sealant retention on 6-year molars were examined separately (ages 6-8 in 2013 cohort). RESULTS: The number of decayed/demineralized surfaces declined across all age groups. The average number of decayed surfaces dropped from 9 at baseline to just over 6 (F1, 3,393 = 69.8, p < 0.0001) and the average number of demineralized surfaces dropped from 6 to less than 2 (1.8 surfaces; F1, 3,393 = 819.0, p < 0.0001). For children aged 6-8 years, there were statistically significantly fewer decayed surfaces (t1, 2,086 = 12.40, p < 0.0001; mean baseline 0.93, SD = 1.75; mean follow-up 0.23, SD = 0.83) and demineralized surfaces (t1, 2,086 = 19.7, p < 0.0001; mean baseline 2.11, SD = 2.74; mean follow-up 0.50, SD = 0.97) on 6-year molars. The Smile Grenada program successfully demonstrated a locally sustainable model for improving oral health in children in a developing country.


Asunto(s)
Caries Dental/epidemiología , Caries Dental/prevención & control , Salud Bucal , Odontología en Salud Pública/métodos , Servicios de Odontología Escolar/métodos , Adolescente , Niño , Diagnóstico Bucal , Femenino , Fluoruración , Fluoruros Tópicos/administración & dosificación , Grenada/epidemiología , Humanos , Incidencia , Masculino , Selladores de Fosas y Fisuras , Cepillado Dental , Pastas de Dientes/administración & dosificación
20.
J Community Health ; 41(5): 1021-6, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27013223

RESUMEN

In Latin America and the Caribbean, there is a scarcity of data on falls, the leading cause of death as a result of unintentional injuries, among older adults aged 65+ years of age. By 2050, 80 % of the 2 billion older adults worldwide are expected to be living in this region; therefore, it is imperative that this issue receive urgent attention from community health practitioners, health educators and policy makers. Guided by Pillar 1-awareness of the WHO fall prevention model for community-dwelling older adults, the purpose of this paper was to describe the feasibility of implementing a falls prevention awareness educational initiative in the Eastern Caribbean Island of Grenada. Sixty-two older adults, average age 67, participated in a falls awareness workshop. An anonymous pre-workshop falls assessment checklist was distributed to establish baseline information followed by an interactive workshop. Eight fall risks were identified and 52 % of the participants reported a history of falls. Based on the group's eagerness to participate, we are encouraged that falls prevention intervention initiatives are feasible among others of similar characteristics in Grenada and plan to implement Pillar II-objective falls assessment and Pillar III-on-going interventions.


Asunto(s)
Accidentes por Caídas/prevención & control , Educación en Salud , Anciano , Lista de Verificación , Recolección de Datos , Femenino , Grenada , Humanos , Masculino
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