References

http://www.cidd.psu.edu/research/syno...

http://www.ncbi.nlm.nih.gov/pubmed/22...

www.fda.gov/downloads/BiologicsBloodVacc

­ines/Vaccines/ApprovedProducts/UCM259175­.pdf

http://www.ncbi.nlm.nih.gov/pubmed/23...

Vaccine Package insert:
http://www.merck.com/product/usa/pi_c...

http://www.ncbi.nlm.nih.gov/pubmed/21...

http://www.ncbi.nlm.nih.gov/pmc/artic...

http://www.ncbi.nlm.nih.gov/pmc/artic...

OR

http://wwwnc.cdc.gov/eid/article/16/7...

http://www.ncbi.nlm.nih.gov/pubmed/92...

http://www.ncbi.nlm.nih.gov/pubmed/22...

http://wwwnc.cdc.gov/eid/article/15/1...

http://www.ncbi.nlm.nih.gov/pubmed/20...

http://www.ncbi.nlm.nih.gov/pubmed/21...

http://www.fda.gov/biologicsbloodvacc...

http://www.ncbi.nlm.nih.gov/pmc/artic...

http://www.cdc.gov/media/releases/201...