Independent presidential candidate Robert F. Kennedy Jr. on Wednesday detailed the medical abnormality he experienced in 2010 that he said was caused by a worm that entered his brain and then died, ...
(Left:) Close-up of the parasites that infected a man after a kidney donation and caused bruising (right) on his stomach. A man who received a donated kidney returned to the hospital 10 weeks after ...
As school starts back up, so does the number of head lice cases. But humans have been dealing with the parasites for millennia—and that may continue indefinitely. Head lice are some of our oldest ...