Letters from the January 13, 2007, issue of Science News

Sunny exposition

“The Antibiotic Vitamin” (SN: 11/11/06, p. 312) reminds me that in preantibiotic days, tuberculosis patients were put on a fresh-air-and-sunshine regimen. Could the vitamin D so acquired account for the cures this system sometimes produced?

Nancy Axford
Sacramento, Calif.

Researcher John J.