Sommer made a number of other discoveries that have led to major advances in global health care and policies , including demonstrating that measurement of mid-arm-circumference ( MUAC ) is a simple and effective tool for conducting nutritional surveillance and identifying children and populations at high risk of dying from malnutrition ; that the easily assessed appearance of the nerve fiber layer in the retina is an early , accurate predictor of glaucomatous optic nerve damage indicating the need to initiate glaucoma therapy ; and that vaccination for smallpox as long as 6 days after infection can prevent the disease , an observation that forestalled mass vaccination of primary responders following 9/11
9/11
September 11 attacks
Alfred Sommer