This incident happened recently in Belgium and we need to be even more careful everywhere.
A woman went boating one Sunday, taking with her some cans of soda drink which she put in the refrigerator of the boat. On Monday she was taken into ICU and on Wednesday she died.
The autopsy revealed a certain Leptospirose caused by the can of soda from which she had drunk, not using a glass. A test showed that the can was infected by dried rat urine and hence the disease Leptospirosis. Rat urine contains toxic and deathly substances.
It is highly recommended to wash thoroughly the upper part of soda cans before drinking out of them as they have been stocked in warehouses and transported straight to the shops without being cleaned.
A study in Spain showed that the tops of soda cans are more contaminated than public toilets ie full of germs and bacteria.
So to wash them with water is advised before putting it to the mouth to avoid any kind of fatal accident. Remember to always use a glass or a straw and pass this on to everyone you care about.