This summer the District laboratory is hosting two interns, Andrew Tierno and Kayvon Solaimanpour. Andrew and Kayvon are in 11th grade at The Harker School in San Jose. They’ll be doing experiments on the effect of population density, nutrient scarcity, and pesticide exposure on Culex mosquito larvae.
This specimen was brought in by a resident and found to be a tropical rat mite. Rat mites are parasites of – you guessed it! – rats, but may feed on humans when rodents are not available. They sometimes become a problem for humans following the removal of a rodent infestation. Rat mite bites may cause an itchy allergic reaction, but they are not currently known to carry any disease affecting humans.