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Lassa fever outbreaks are not uncommon and the US Centers for Disease Control and Prevention estimates there are between 100,000 to 300,000 infections in west Africa every year, with about 5,000 deaths. The virus is spread through contact with food or household items contaminated with rats' urine or feces.
In 2012, there were 1,723 cases and 112 deaths in Nigeria. In 2015, 12 people died out of 375 infected, according to the Nigerian Center for Disease Control. Nigeria's health minister Isaac ...