Related Experiment Video
Updated: Aug 10, 2026

11:10
Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 27, 2010
Seasonality in tropical AIDS: a geographical analysis
M R Smallman-Raynor1, A D Cliff
1Department of Geography, University of Cambridge, UK.
International Journal of Epidemiology
|June 1, 1992
Summary
The AIDS epidemic in Uganda shows seasonal geographical patterns, accelerating in some regions for 8 months yearly. This acceleration may link to agricultural systems and seasonal malnutrition, impacting HIV progression.
Area of Science:
- Epidemiology
- Public Health
- Tropical Medicine
Background:
- The Acquired Immunodeficiency Syndrome (AIDS) epidemic presents a significant global health challenge.
- Understanding spatial and temporal dynamics of HIV/AIDS is crucial for effective intervention strategies.
- Seasonal variations in nutritional status are common in tropical regions, potentially influencing disease progression.
Purpose of the Study:
- To investigate the geographical and seasonal patterns of the AIDS epidemic growth rate in Uganda.
- To explore the correlation between epidemic acceleration and agricultural systems.
- To hypothesize the role of seasonal malnutrition in HIV progression and AIDS epidemic dynamics.
Main Methods:
- Analysis of AIDS epidemic growth rates at the district level in Uganda.
- Correlation analysis between spatial-temporal epidemic variations and predominant agricultural systems.
- Review of existing hypotheses on the relationship between malnutrition and AIDS progression.
Main Results:
- Evidence suggests a seasonally recurring geographical pattern in the AIDS epidemic growth rate in Uganda.
- Epidemic acceleration observed in certain areas during the first 8 months of each year.
- Spatial and temporal variations in epidemic acceleration appear linked to local agricultural systems.
Conclusions:
- Seasonal patterns of nutritional deficiency, influenced by tropical agricultural systems, may drive observed epidemic accelerations.
- Preliminary findings suggest a link between malnutrition and the progression of the AIDS epidemic in Uganda.
- Further verification is needed to confirm these findings and inform targeted, nutrition-related interventions in tropical countries with co-existing HIV and malnutrition.
Keywords:
Acquired Immunodeficiency SyndromeAdministrative DistrictsAfricaAfrica South Of The SaharaAgricultureData AnalysisData QualityDemographic FactorsDeveloping CountriesDiseasesEastern AfricaEconomic FactorsEnglish Speaking AfricaGeographic FactorsGeographyHiv InfectionsHuman GeographyMacroeconomic FactorsMalnutritionMethodological StudiesNutrition DisordersPopulationPopulation DynamicsResearch MethodologySeasonal VariationSocial SciencesSpatial DistributionStatistical RegressionUgandaViral DiseasesRelated Concept Videos
What is Climate?
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
Yellow Fever
Yellow fever is a viral hemorrhagic disease caused by the yellow fever virus (YFV), a member of the Flaviviridae family. It is transmitted primarily by Aedes and Haemagogus mosquitoes in tropical and subtropical regions of Africa and South America. After transmission through a mosquito bite, the virus initially replicates in skin-resident immune cells such as dendritic cells and macrophages. These cells then migrate to the lymph nodes, where viral replication increases, eventually leading to...
Malaria
Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...
American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...

