Mosquitos with Saint Louis encephalitis found in California, USA

There has been an increase in the number of mosquitos detected with Saint Louis encephalitis virus this year in the Coachella Valley from 37 samples in 2015 to 91 in 2016. Over 8 counties in California have identified the virus in 176 mosquitos as well as one human this year.

Advice For Travellers

The risk for the general traveller is low. Although there has been only 1 human infection reported from the affected area, travellers to the areas where this virus has been found should be aware that it is spread to people and animals by infected mosquitos. So, it is recommended that travellers wear insect repellent to protect from mosquito bites. Symptoms can range from fatigue, nausea, and headaches to hospitalization, long-term disability or death in severe cases.

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