TB Or Not TB? Don’t Rely on a Blood Test

TB can’t be diagnosed with a blood test. Tuberculosis has been infecting humans since prehistoric times. It’s still with us. It usually can be cured today with good medical care but is still a serious problem in much of the world, especially among underprivileged socioeconomic groups and some ethnic populations. It kills 1.5 million people

Statistical Shenanigans?

The manufacturers of Covid-19 vaccines say they are 95% effective. Peter Doshi re-examined the evidence and estimates they are only 19-29% effective. This pre-print of an as-yet unpublished re-analysis raises many questions but doesn’t support the claims being made on antivaccine sites. A correspondent asked for my opinion about a study that he said has been appearing

Answering Vaccine Skeptics

The anti-vaccine movement is full of conspiracy theorists who deny the evidence for the effectiveness of vaccines, call vaccines “poisons,” think doctors and manufacturers (in collusion with the government) only promote vaccines to boost their incomes, and blame vaccines for all manner of adverse events. These vaccine denialists must not be confused with vaccine skeptics,

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