Trypanosoma cruzi, the hemoflagellate parasite and cause of Chagas disease in Latin America, is carried by Triatomine vectors, principally Triatoma dimidiata and Rhodnius prolixus in Central America. To assist control efforts and to understand the epidemiology of the disease in Guatemala, the population genetics of T. dimidiata was analyzed among three houses within a village and two adjacent v...

The rapid urbanization is giving changes to China’s appearance. Urban areas, for their own sake, are encroaching on lands and villages. The traditional villages are open to exploitation for the development of tourism. They are severely destroyed and the buildings significantly altered for more economic benefits. The traditional culture has been lost; instead, modern villages are constructed. Pe...

We study the emergence and coexistence of monetary and credit transactions in a model where exchange is decentralized. Agents belong to different villages which are informationally separated. The frequency of meetings between any two different villages decreases as their respective geographic distance from one another increases. The equilibrium mix of monetary and credit transactions is charact...

Preventing emergence of new zoonotic viruses depends on understanding determinants for human risk. Nipah virus (NiV) is a lethal zoonotic pathogen that has spilled over from bats into human populations, with limited person-to-person transmission. We examined ecologic and human behavioral drivers of geographic variation for risk of NiV infection in Bangladesh. We visited 60 villages during 2011-...

The impact of annual single-dose community-wide treatment on the transmission of Wuchereria bancrofti was investigated in 5 villages in the East Sepik Province where pretreatment prevalence of microfilaraemia ranged from 34% to 73%. Anopheles punctulatus and An. koliensis were the only carriers of the parasite. 3 villages received diethylcarbamazine citrate (DEC) in combination with ivermectin ...

The abundance and age structure of Anopheles albimanus populations were estimated by UV updraft light traps and human landing catches within villages and in nearby breeding sites of southern México. Four villages and 5 breeding sites were selected for the study. Light trap and human landing catches were simultaneously carried out in each breeding site and each village. Anopheles albimanus was t...

BACKGROUND The Health outcomes of an individual depend on his /her life position. OBJECTIVES The purpose of the present paper aimed to study spontaneous abortion (as a high risk factor among rural pregnant) due to their life status. PATIENTS AND METHODS The study was conducted among 40 young rural pregnant women, 12 to 20 years old by implementing a questionnaire during 2012 to 2013 in four...

Background In the Lao PDR, the incidence of malaria greatly differs among villages even within a subdistrict, and the reasons for this difference are poorly understood. The objective of this study was to identify differences in villagers' behavior and the household environment between villages with high incidences and those with low incidences of malaria in a rural district of the Lao PDR. Me...