1.   ATLANTA - Despite the summer-long media blitz on sharks biting humans, this has really been a so-so year for shark attacks.

2.   After biting humans, female mosquitoes use the blood they suck to produce hundreds of eggs.

3.   Females usually bite humans only once in their adult lifetime, which lasts about one week.

4.   For reasons that are neither clear nor consistent, some breeds bite humans out of proportion to their numbers in the canine population.

5.   For example, bedbugs really do nest in mattresses and sometimes bite sleeping humans.

6.   Mosquitoes bite infected birds and then bite humans.

7.   The type of tick that carries the virus, hyaloma marginata, most often attacks livestock, but Swanepoel said the ticks sometimes bite humans.

8.   They rarely bite humans for their blood meals.

9.   Third, that mosquito must bite a human and infect him or her.

10.   A female fly bites a human and unwittingly plants the parasites.