People vaccinated against polio nevertheless may not be adequately protected against a certain strain of the virus. During a major outbreak of hepatitis A infection in Glasgow, blood serum of 24 of the victims were also tested for antibodies to pol
Since vaccination apparently raised antibody levels to the two other strains, Department of Public Health Medicine researchers in Glasgow were mystified about the low response to type 3.
"Concern about immunity to polioviruses is not news. Two previous studies in the United Kingdom have shown decreasing antibody levels in children," they wrote.