Associations between High Temperature, Heavy Rainfall, and Diarrhea among Young Children in Rural Tamil Nadu, India: A Prospective Cohort Study
Mertens, A., Balakrishnan, K., Ramaswamy, P., Rajkumar, P., Ramaprabha, P., Durairaj, N., Hubbard A.E., Khush, R., Colford, J.M., Arnold, B.F. (2019). Associations Between High Temperature, Heavy Rainfall, and Diarrhea Among Young Children in Rural Tamil Nadu, India: A Prospective Cohort Study. Environmental Health Perspectives. 127,4: doi:10.1289/EHP3711
Diarrhea is the fourth leading cause of death of children <5 y of age worldwide (Liu et al. 2012), and recurrent and prolonged episodes early in life have been linked to stunted growth and cognitive development (Checkley et al. 1998; Guerrant et al. 2013). Diarrhea is seasonal in many settings and all-cause diarrhea is associated with temperature and rainfall in both high- and low-income countries (Carlton et al. 2016; Checkley et al. 2000; Levy et al. 2016). Bacterial and protozoal diarrhea is also associated with increased temperature (Carlton et al. 2016). For bacterial pathogens that cause diarrhea, higher temperatures may promote bacterial population growth in stored food and drinking water, increasing the risk of food- and waterborne illnesses (D’Souza et al. 2004; McCabe-Sellers and Beattie 2004).