Coming up on monsoon season, many pregnant women in Nepal face a serious risk of infection by hepatitis E, according to Reuters. Hepatitis E is a liver disease that generally infects people when they drink water infected with feces. With poor sanitation and a country recently ravaged by natural disasters, experts estimate that an outbreak could kill more than 500 pregnant women. Although there is currently a vaccine, it is only licensed to be used in China since the World Health Organization says that it still needs more data on the vaccine before they can recommend it for routine use. Therefore, many in Nepal will have to be cautious over the coming monsoon season in particular from July to September.