Do snowflakes contain bacteria?

Most snow and rain forms in cold conditions high in the sky.Under most conditions, the moisture needs something to cling to in order to condense. Now the so-called nucleators turn out to be bacteria that can affect plants. In some studies 85% of the neclei's were bacteria. The most common place where the snow had bacteria was France than Montana than Yukon. Also, bacteria in the snow was also found in Antarctica. In Louisiana there was bacteria found in the rain. Scientist are trying to eliminate the bacteria but they are worried that if they do there will be less rain and snow. the bacteria is very effective in weather which is about a few degrees below freezing.

i got my information from

http://www.cnn.com/2008/TECH/science/02/28/snow.bugs.ap/index.html#cnnSTCText