No, that strange looking man with a huge gun IS your friend! This is what mosquito control looks like in Singapore. Dengue fever is the commonest danger from mosquitoes, but vast quantities of insecticides (chlorinated hydrocarbons, organophosphates etc.) are sprayed every week around residential blocks, car parks etc.. Of course the best risk control is to avoid getting bitten, i.e. staying away from dank places where they like to breed. They spread dengue dever (aka breakbone fever because of the accompanying joint and muscle pains) from one infected person to another. Unlike mosquitoes that spread malaria which like to bite in the evening, these ones are not fussy and bite any time of day. They are found elsewhere in the world, and apparently are on the increase along the Texas-Mexico border.
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