- Parasites and Host Interactions
- Zoonotic diseases and public health
- Parasite Biology and Host Interactions
- Helminth infection and control
- Computational Fluid Dynamics and Aerodynamics
- Parasitic Diseases Research and Treatment
- Fluid Dynamics and Turbulent Flows
- Malaria Research and Control
- Advanced Aircraft Design and Technologies
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Insects and Parasite Interactions
- Aeroelasticity and Vibration Control
- Global Maternal and Child Health
- Research on Leishmaniasis Studies
- Coccidia and coccidiosis research
- Turbomachinery Performance and Optimization
- Aerospace and Aviation Technology
- Trypanosoma species research and implications
- Data-Driven Disease Surveillance
- Probabilistic and Robust Engineering Design
- Vector-Borne Animal Diseases
- Insect Pest Control Strategies
- Spacecraft Design and Technology
- Parasitic Infections and Diagnostics
Oceaneering International (United States)
2023
Louisiana State University
2011-2022
Charles Darwin University
2008
Jiangsu Institute of Parasitic Diseases
2008
National Institute for Parasitic Diseases
2008
Langley Research Center
1990-2006
University of Asmara
2004
Johns Hopkins University
2004
United States Agency for International Development
2004
Universitat de València
2003
Appraisal of the present and future impact climate change variability on transmission infectious diseases is a complex but pressing public health issue. We developed biology-driven model to assess potential rising temperature schistosomiasis in China. found threshold 15.4 degrees C for development Schistosoma japonicum within intermediate host snail (i.e., Oncomelania hupensis), 5.8 at which half sample investigated was hibernation. Historical data suggest that occurrence O. hupensis...
FRAENKEL, G. S., AND D. L. GUNN. 1940. The Orientation of Animals. Oxford Univ. Press, London, 352 p. GREEN, C. 1966. male Heterodera rostochiensis Woll. and H. schachtii Schm. to their females. Ann. Appl. Biol. 58: 327-339. 1967. attraction cystnematodes by Nematologica 13: 172-173. GREET, N. 1964. Observations on sexual copulation in the nematode Panagrolaimus rigidus (Schneider). Nature 204: 96-97. JONES, T. P. Sex Pelodera teres. 12: 518-522.
Strains of Dirofilaria immitis suspected lack efficacy (LOE) to macrocyclic lactone (ML) preventive drugs have been increasingly reported in dogs by practicing veterinarians since 2005 the Lower Mississippi Delta region. If proven, and not controlled early stages, emergence ML drug resistance threatens become a widespread problem US that may limit effectiveness current treatment methods. To validate practice reports, statewide survey Louisiana was done define extent identify focal `hotspots'...
Schistosomiasis mansoni remains an important parasitic disease of man, endemic in large parts sub-Saharan Africa, the Middle East, South America and Caribbean. The aetiological agent is trematode Schistosoma mansoni, whereas aquatic snails genus Biomphalaria act as intermediate hosts parasite life cycle. In Brazil, distribution spp. closely associated with occurrence schistosomiasis. purpose this study was to map predict spatial host S. across Brazil. We assembled snail “presenceonly” data...
Abstract Background The prevalence of infection with the three common soil-transmitted helminths (i.e. Ascaris lumbricoides , Trichuris trichiura and hookworm) in Bolivia is among highest Latin America. However, spatial distribution burden helminthiasis are poorly documented. Methods We analysed historical survey data using Bayesian geostatistical models to identify determinants helminth infections, predict geographical risk, assess treatment needs costs frame preventive chemotherapy....
Fasciolosis, caused by Fasciola hepatica, is an endemic disease of ruminants that occurs in several countries South America where it can lead to decreased production and fertility and, severe cases, animal death. Although very prevalent, information on the epidemiology incomplete Brazil. The objective present study was define prevalence F. hepatica livers cattle from slaughterhouses correlate data with animal's origin (climate altitude) using a Geographic Information System (GIS). used...
Two predictive models were developed within a geographic information system using Genetic Algorithm Rule-Set Prediction (GARP) and the growing degree day (GDD)-water budget (WB) concept to predict distribution potential risk of visceral leishmaniasis (VL) in State Bahia, Brazil. The objective was define environmental suitability disease as well obtain deeper understanding eco-epidemiology VL by associating climatic variables with prevalence. Both GARP model GDDWB model, different analysis...
The 1st International Symposium on Geospatial Health was convened in Lijiang, Yunnan province, People's Republic of China from 8 to 9 September, 2007. objective review progress made with the application spatial techniques zoonotic parasitic diseases, particularly Southeast Asia. symposium featured 71 presentations covering soil-transmitted and water-borne helminth infections, as well arthropod-borne diseases such leishmaniasis, malaria lymphatic filariasis. work public at this occasion is...
A predictive Fasciola hepatica model, based on the growing degree day-water budget (GDD-WB) concept and known biological requirements of parasite, was developed within a geographical information system (GIS) in Colombia. Climate-based forecast index (CFI) values were calculated represented national-scale, climate grid (18 x 18 km) using ArcGIS 9.3. mask overlay used to exclude unsuitable areas where mean annual temperature exceeded 25 °C, upper threshold for development propagation F. life...
Accurately defining disease distributions and calculating risk is an important step in the control prevention of diseases. Geographical information systems (GIS) remote sensing technologies, with maximum entropy (Maxent) ecological niche modelling computer software, were used to create predictive maps for Chagas Bolivia. Prevalence rates calculated from 2007 2009 household infection survey data Bolivia, while environmental compiled Worldclim database MODIS satellite imagery. Socio-economic...
A geographic information system was constructed using maps of regional environmental features, Schistosoma mansoni prevalence in 30 representative municipalities, and snail distribution Bahia, Brazil to study the spatial temporal dynamics infection identify factors that influence schistosomiasis. Results indicate population density duration annual dry period are most important determinants schistosomiasis areas selected for study. Maximum rainfall, total precipitation during three...
The purpose of this study was to deepen our understanding Plasmodium vivax malaria transmission patterns in the People's Republic China (P.R. China). An integrated modeling approach employed, combining biological and statistical models. A Delphi used determine environmental factors that govern transmission. Key identified (i.e. temperature, rainfall relative humidity) were utilized for subsequent mapping purposes. Yearly growing degree days, annual effective yearly humidity extracted from a...
Opisthorchis viverrini infection is associated with human cholangiocarcinoma and northeast Thailand has the highest incidence of this disease in world. Bithynia siamensis goniomphalos major freshwater snail intermediate host O. area an analysis based on geographical information systems was used to determine effect variation soil surface salt density distribution snail. A malacological survey carried out 56 water bodies Khorat basin, at locations various levels. Mollusk samples were collected...