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Links between climate variability and infectious disease risk are different for each disease; but for some diseases, heat and/or moisture are very important. Warmer temperatures and changes in precipitation may affect the spread of vector-borne diseases such as Lyme disease, West Nile virus, and influenza. Some waterborne infectious diseases such as cryptosporidiosis or giardiasis may become more frequent or widespread if more extreme rainfall events cause water treatment facilities to be overwhelmed. A combination of approaches, including monitoring, public education programs, vaccines, and certain behavior changes for individuals at higher risk, can help reduce the spread of diseases. |