The links between climate variation and infectious diseases

The transmission of infectious disease agents is influenced by many factors, including social, economic, climatic, and ecological conditions (Weiss and McMichael, 2004). In situations where low temperature, low rainfall, or lack of vector habitat are significant limiting factors for vector-borne disease transmission, climatic changes may tip the ecological balance and trigger outbreaks. A change in transmission rate, range, or seasonality can also result from climate-related migration of reservoir host species or human populations (Hales etal., 2000).

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