Sunday, February 14, 2010

Fresh Blood -- More Mosquito News

Last August, I discussed what chemicals Mosquitoes smell when they are tracking people down.

A new study from John Carlson at Yale found mosquites sense primarily indole. Indole is a decomposition product of the amino acid triptophan, and may be the result of skin bacteria degrading the skin. Other chemicals detected 2,3 butanedione and 1-octen-3-ol, may similarly be bacteral degradation products.

There is an exception 2-ethyl phenol -- that is from urine.

If there were a way to keeps skin bacteria from living on your skin, one might avoid mosquito bites, but I don't think that is easy to do.

If urine you smell like urine, you have bigger problems than mosquitos.