Study: Salmonella Infections Rise With Extreme Weather Events
Heavy rains increase the risk of food contamination by Salmonella. For example, rivers overflows and that excess of water is poured on crops. Sometimes, farmers use chicken manure as fertilizer, therefore, when the precipitation increase, the rain spread the pathogen. Researchers at the University of Maryland has shown that climate change may be causing more than just an increase in extreme weather events such as heat waves and storms. Those events also seem to be bringing a heightened risk of Salmonella outbreaks. The research, published in Environment International, concluded that the risk of salmonellosis can increase in 4,1% when the temperature increase in one unit. They observed that this risk increase was more pronounced in coastal versus non-coastal areas (5.1% vs 1.5%).
Likewise, they observed a 5.6% increase in salmonellosis risk associated with a 1 unit increase in extreme precipitation events, with the impact disproportionately felt in coastal areas (7.1% vs 3.6%). It is important to considerate that bacteria tend to multiply and grow better in warmer and wetter environments.