Globally more than 700 million people are infected with mosquito borne diseases each year, and more than 700,000 die. But it would be unfair to blame the entire mosquito family for this. Of the 3500 or so species of mosquitoes in existence, only the females of about 200 species are inclined to bite humans. Of that 200, just a handful are carriers of human disease; these are the ones that do all the damage. Continue reading.