Self-reported adverse reactions in 4337 healthcare workers immunizations against novel H1N1 influenza
2011

Safety of H1N1 Vaccine in Healthcare Workers

Sample size: 4337 publication Evidence: moderate

Author Information

Author(s): Harald Bias, David Quarcoo, Claus Meier-Wronski, Sabine Wicker, Joachim Seybold, Albert Nienhaus, David A Groneberg, Andres de Roux

Primary Institution: Charité - Universitätsmedizin Berlin

Hypothesis

Is the H1N1 vaccine safe for healthcare workers?

Conclusion

The study indicates that the H1N1 vaccine is safe, with a low rate of reported adverse reactions.

Supporting Evidence

  • 6.7% of vaccinated individuals reported adverse reactions.
  • The most common reactions included local pain and fatigue.
  • The mean duration of symptoms was 3.5 days.

Takeaway

The H1N1 vaccine is mostly safe for healthcare workers, with only a few people reporting side effects.

Methodology

A self-reporting questionnaire was used to collect data on adverse reactions from vaccinated healthcare workers and medical students.

Potential Biases

Self-reporting may introduce bias as not all individuals may return the questionnaire.

Limitations

The study relies on self-reported data, which may lead to underreporting of adverse reactions.

Participant Demographics

Participants included 3808 healthcare workers and 529 medical students, primarily vaccinated in November 2009.

Digital Object Identifier (DOI)

10.1186/1756-0500-4-297

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