People often worry that global warming will cause some germs that are already in the tropics to spread to other places. A report published in the new British journal Nature-Climate Change confirms the existence of this phenomenon. The study showed that the outbreak of the Vibrio epidemic in Northern Europe was related to the warming of the local ocean.

Vibrio is a type of bacteria that causes intestinal infections, which can cause diseases such as gastroenteritis and cholera. This bacterium is usually found in warmer waters and people may get sick if they eat unclean aquatic products.

In the colder coastal areas of the Nordic Baltic Sea, the number of Vibrio cases in the past is not too large, but an international research team found that the number of cases infected with Vibrio in this area has recently increased, and the distribution of these cases There is a clear correlation between the situation and the change in local water temperature. If the water temperature in one place rises by 1 degree Celsius, the number of cases may double.

This study shows that in the past three decades, the temperature of the Baltic Sea has risen rapidly, at a rate of 0.63 to 0.78 degrees Celsius per decade, much higher than the global surface temperature rise rate of about 0.17 degrees Celsius per decade. Level. Researchers therefore believe that the remarkable warming of the Baltic Sea has enhanced the ability of Vibrio to spread in coastal areas.

Researchers say that in the past, some Vibrio epidemics in colder climates have often been attributed to a specific short-term cause, but now it seems that in the context of climate change, attention needs to be paid to the effects of global warming. And for global warming, it will lead to changes in the ability of other germs to spread, and more research is needed.

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