Masahiro Hashizume, Ben Armstrong, Shakoor Hajat, Yukiko Wagatsuma et al.
BACKGROUND: We estimated the effects of rainfall and temperature on the number of non-cholera diarrhoea cases and identified population factors potentially affecting vulnerability to the effect of the climate factors in Dhaka, Bangladesh. METHODS: Weekly rainfall, temperature and number of hospital ...
Chisato Imai, Ben Armstrong, Zaid Chalabi, Punam Mangtani et al.
Time series regression has been developed and long used to evaluate the short-term associations of air pollution and weather with mortality or morbidity of non-infectious diseases. The application of the regression approaches from this tradition to infectious diseases, however, is less well explored...
Ashraf Dewan, Robert J. Corner, Masahiro Hashizume, Emmanuel T. Ongee
Typhoid fever is a major cause of death worldwide with a major part of the disease burden in developing regions such as the Indian sub-continent. Bangladesh is part of this highly endemic region, yet little is known about the spatial and temporal distribution of the disease at a regional scale. This...
Ubydul Haque, Masahiro Hashizume, Korine N. Kolivras, Hans J. Overgaard et al.
Tropical storms, such as cyclones, hurricanes and typhoons, present major threats to coastal communities. Around two million people worldwide have died and millions have been injured over the past two centuries as a result of tropical storms. Bangladesh is especially vulnerable to tropical cyclones,...
Masahiro Hashizume, Ben Armstrong, Shakoor Hajat, Yukiko Wagatsuma et al.
BACKGROUND: The incidence of cholera in Bangladesh shows clear seasonality, suggesting that weather factors could play a role in its epidemiology. We estimated the effects of rainfall on the incidence of cholera in Dhaka, Bangladesh. METHODS: We examined time-series patterns of the weekly number of ...
Masahiro Hashizume, Ben Armstrong, Yukiko Wagatsuma, Shah M. Faruque et al.
Attempts to explain the clear seasonality of rotavirus infections have been made by relating disease incidence to climate factors; however, few studies have disentangled the effects of weather from other factors that might cause seasonality. We investigated the relationships between hospital visits ...
Masahiro Hashizume, Yukiko Wagatsuma, Abu Syed Golam Faruque, Taiichi Hayashi et al.
This paper identifies groups vulnerable to the effect of flooding on hospital visits due to diarrhoea during and after a flood event in 1998 in Dhaka, Bangladesh. The number of observed cases of cholera and non-cholera diarrhoea per week was compared to expected normal numbers during the flood and p...
Masahiro Hashizume, Yukiko Wagatsuma, Taiichi Hayashi, Sajal Saha et al.
BACKGROUND: Studies in urban cities have consistently shown evidence of increased mortality in association with hot and cold weather. However, few studies have examined temperature-mortality relationship in the rural areas of developing countries. In this study we therefore aimed to characterize the...
Ai Milojevic, Ben Armstrong, Masahiro Hashizume, Katherine McAllister et al.
BACKGROUND: There is little information available on nontraumatic health risks as the result of floods, and on the factors that determine vulnerability to them (especially in low-income settings). We estimated the pattern of mortality, diarrhea, and acute respiratory infection following the 2004 flo...
Ubydul Haque, Masahiro Hashizume, Gregory E. Glass, Ashraf Dewan et al.
BACKGROUND: Malaria is a major public health problem in Bangladesh, frequently occurring as epidemics since the 1990s. Many factors affect increases in malaria cases, including changes in land use, drug resistance, malaria control programs, socioeconomic issues, and climatic factors. No study has ex...
Masahiro Hashizume, Ashraf Dewan, Toshihiko Sunahara, Mohammed Ziaur Rahman et al.
BACKGROUND: While floods can potentially increase the transmission of dengue, only few studies have reported the association of dengue epidemics with flooding. We estimated the effects of river levels and rainfall on the hospital admissions for dengue fever at 11 major hospitals in Dhaka, Bangladesh...
Robert J. Corner, Ashraf Dewan, Masahiro Hashizume
BACKGROUND: Developing countries in South Asia, such as Bangladesh, bear a disproportionate burden of diarrhoeal diseases such as cholera, typhoid and paratyphoid. These seem to be aggravated by a number of social and environmental factors such as lack of access to safe drinking water, overcrowdedne...
Ubydul Haque, Lauren M Scott, Masahiro Hashizume, Emily Fisher et al.
BACKGROUND: Malaria treatment-seeking practices vary worldwide and Bangladesh is no exception. Individuals from 88 villages in Rajasthali were asked about their treatment-seeking practices. A portion of these households preferred malaria treatment from the National Control Programme, but still a lar...
Masahiro Hashizume, Abu Syed Golam Faruque, Yukiko Wagatsuma, Taiichi Hayashi et al.
BACKGROUND: The mechanisms underlying the seasonality of cholera are still not fully understood, despite long-standing recognition of clear bimodal seasonality in Bangladesh. We aimed to quantify the contribution of climatic factors to seasonal variations in cholera incidence. METHODS: We investigat...
Ubydul Haque, Toshihiko Sunahara, Masahiro Hashizume, Timothy Shields et al.
BACKGROUND: Malaria is a major public health concern in Bangladesh and it is highly endemic in the Chittagong Hill Tracts where prevalence was 11.7% in 2007. One sub-district, Rajasthali, had a prevalence of 36%. Several interventions were introduced in early 2007 to control malaria. This study was ...