Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘paediatric & perinatal epi’ Category

Caught Our Notice: To know if someone’s been vaccinated, just asking isn’t enough

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Via Wikimedia

Title: Hepatitis B Virus Infection in Preconception Period Among Women of Reproductive Age in Rural China – A Nationwide Study

What Caught Our Attention: When researchers set out to study hepatitis B among women in rural China, and they wanted to know if the women had been vaccinated against the virus, they simply asked them. While that can sometimes be useful, apparently it was a mistake in this case, as the reliance on patient memory injected too much doubt into these findings.  Read the rest of this entry »