Adventitious Agents
Unknown Cow and Pig Viruses Routinely in Vaccines
"There are more viruses of potential risk to biological products manufactured using bovine or porcine raw materials than are likely to be detected by 9CFR testing procedures; even within families, not all members would necessarily be detected. Testing gaps and alternative methodologies should be evaluated to continue to ensure safe, high quality human biologicals."
Note that it is assumed, despite the lack of information, that the vaccines are safe. When vaccine injury occurs, consider the role of adventitious agents.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206158/
Note that it is assumed, despite the lack of information, that the vaccines are safe. When vaccine injury occurs, consider the role of adventitious agents.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206158/