Published in Vaccine Weekly, June 14th, 2006
Researchers in the United States report, "Proliferation to phytohemagglutinin (PHA) and cell-mediated responses to influenza vaccine (FLU) were assessed in healthy elderly Caucasians, African Americans, Latinos, and young Caucasians before and after immunization."
"Both PHA-and FLU-induced proliferation were reduced in elderly subgroups. FLU-induced proliferation increased...
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