Adverse event reports following Japanese encephalitis vaccination in the United States, 1999-2009.
We reviewed adverse events following receipt of inactivated mouse brain-derived Japanese encephalitis (JE) vaccine reported to the U.S. Vaccine Adverse Event Reporting System (VAERS) from 1999 to 2009. During this period, VAERS received 300 adverse event reports following JE vaccination (24 per 100,000 doses distributed); 106 (35%) were classified as hypersensitivity reactions (8.4 per 100,000 doses) and four (1%) were classified as neurologic events (0.3 per 100,000 doses). Twenty-three (8%) reports described serious adverse events (1.8 per 100,000 doses distributed). There were no reports of encephalitis, meningitis, or Guillain-Barré syndrome. As reported previously, hypersensitivity reactions were common among persons receiving inactivated mouse brain-derived JE vaccine.
Arboviral Diseases Branch, Centers for Disease Control and Prevention, 3150 Rampart Road, Fort Collins, CO 80521, United States. nplindsey@cdc.gov
Nicole P
NP
Lindsey
J Erin
JE
Staples
James F
JF
Jones
James J
JJ
Sejvar
Anne
A
Griggs
John
J
Iskander
Elaine R
ER
Miller
Marc
M
Fischer
D000293:Adolescent; D000328:Adult; D004672:Encephalitis, Japanese / Q000517:prevention & control*; D005260:Female; D006801:Humans; D006967:Hypersensitivity; D015994:Incidence; D022321:Japanese Encephalitis Vaccines / Q000008:administration & dosage / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009422:Nervous System Diseases / Q000139:chemically induced; D014481:United States; D015164:Vaccines, Inactivated / Q000008:administration & dosage / Q000009:adverse effects; D055815:Young Adult
D022321:Japanese Encephalitis Vaccines; D015164:Vaccines, Inactivated