It is caused by Giardia lamblia, a water-borne parasite that is worldwide in distribution. The symptoms usually occur one to two weeks after exposure to the parasite. Symptoms initially include ...

An ecologist shares his passion for parasites. From their vital roles in nature, to strange super powers and extraordinarily complex life cycles, parasites are natural wonders worthy of protection.

According to the doctors, while the physical presence of the tick was likely very uncomfortable, the woman's pain and other symptoms were likely caused by the saliva of the tick. This saliva ...

Tritrichomonas foetus (Tritric) is a microscopic menace that can turn a household into a battleground of chronic illness.

As temperatures drop, outdoor cats may spend more time indoors and share toxoplasmosis, also known as the “cat parasite.” ...