Vibrio bacteria, which is normally found growing in warm and tropical waters, now thrives in the Baltic Sea bacteria strains and scientists believe it will multiply as seas warm.
Climate change is driving the growth of a group of water-borne bacteria in northern Europe that can cause illnesses from cholera to gastroenteritis, the 'Daily Mail' reported.
An international team examined sea surface temperature records and satellite data, as well as statistics on Vibrio cases in the Baltic Sea.
Vibrios bacteria can cause various infections in humans, from eating raw or undercooked shellfish or from exposure to seawater.
The researchers found the number and distribution of cases in the Baltic Sea area was strongly linked to peaks in sea surface temperatures.
Each year the temperature rose one degree, the number of vibrio cases rose almost 200 per cent.
"The big apparent increases that we've seen in cases during heat wave years... Tend to indicate that climate change is indeed driving infections," study author Craig Baker-Austin from the UK-based Centre for Environment, Fisheries and Aquaculture Science, said.
Climate studies suggest that rising greenhouse gas emissions made global average surface temperatures increase by about 0.17 degrees Celsius a decade from 1980 to 2010.
Vibrio outbreaks have also appeared in temperate and cold regions in Chile, Peru, Israel, the northwest US Pacific and northwest Spain, and these can be linked to warming patterns, the scientists said.
Previous Vibrio outbreaks in colder regions have often been put down to a sporadic event or special conditions rather than a response to long-term climate change.
This is because the effects of global warming can be more pronounced at higher latitudes and in areas which lack detailed historical climate data, the study said.
The report is published in the journal Nature Climate Change.
