Choclo virus has not been shown to transfer from person-to-person. Transmission by aerosolized rodent excreta still remains the only known way the virus is transmitted to humans. In general, droplet and/or fomite transfer has not been shown in the hantaviruses in general, in either the hemorrhagic or pulmonary forms.
There were a total of eleven cases reported but only nine serologically confirmed cases of Choclo virus found in this outbreak. A serologic survey of residents in the area revealed a 13% antibody prevalence. No person-to-person transmissions were found. There were no fatalities among serologically confirmed cases. The three fatalities could not be tested for the virus due to the absence of samples available. Before this outbreak, there were no documented cases of human hantavirus infections in Central America.
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