Head lice, fleas and tapeworms have been humanity's companions throughout our evolutionary history. Yet, the greatest ...

Toxoplasma gondii, a parasite spread by cats, can shred human sperm and may be an overlooked factor in declining male ...

Infectious diseases such as gonorrhea or chlamydia are often overlooked factors that affect fertility in men. Accumulating ...

Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China ...

If you’ve handled cat litter or eaten raw meat or unwashed produce, there’s a chance you might have a permanent toxoplasmosis ...