New studies conducted on the remains of England's King Richard III show he was infected with roundworm when he died.
Scientists excavated his remains in September 2012 and took samples from his pelvic area for testing. Samples were also taken from Richard III's skull and the surrounding soil, for control, the study published in the Lancet Wednesday states.
The results showed multiple roundworm eggs in the sample from the pelvic area, which is where his intestines would have been. The sample from his skull contained no parasitic eggs, the study stated. The researchers say this means Richard III had roundworm, which is spread through fecal contamination of food.
Symptoms of roundworm can include weight loss, fatigue and abdominal pain. Roundworms can grow up to a metre long.
Richard III ruled England from 1483 to 1485 and was killed by an axe-like weapon at the Battle of Bosworth Field.