A high Louisiana medical official said here Sunday night that present public excitement over polio attacks among children who received the Salk anti-polio vaccine is unfounded.
Dr. A. A. Herold, Shreveport, chairman of the past presidents council of t h e Louisiana State Medical Society, called the vac-cine "a wonderful thing."
"It just happened that it was given to some children who were already developing the disease," he said. "The vaccine had not had time to even take effect whetf polio struck them."
However, Dr. Herold added, it is possible that the polio virus in sorne vaccine was not "killed" in the laboratory. In these cases, he said, the faulty vaccine could have brought on the disease.
