Science

A 40-year old Asian elephant at the St. Louis Zoo named "Donna" has tested positive for tuberculosis, but is expected to be just fine.

Donna the Elephant came to the St. Louis zoo as a 3-year old juvenile in 1971.

All elephants get complete medical evaluation each year including blood collection, vaccinations and trunk cultures to look for tuberculosis.

Randy Junge, the Zoo's Director of Animal Health said the 40-year-old pachyderm will live off-display for the next year, but won't be quarantined.

Workers exposed to the metal manganese in welding fumes may be at increased risk of developing Parkinson’s-like symptoms, including loss of motor control and tremors.

That’s the finding of researchers at Washington University School of Medicine, who compared brain scans of apparently healthy welders to those of Parkinson’s patients.