(October 16, 2009 - Insidermedicine)

From the Czech Republic - According to a report published in The Lancet, giving infants acetaminophen may weaken their immune system's response to vaccination. Researchers studied two groups of infants--one that received frequent acetaminophen doses a day after vaccination while the other was given nothing. Children in the acetaminophen group showed a considerably weaker immune response to vaccination.

From London - Kidney transplant patients are safe to undergo coronary angiography to assess the health of their heart prior to surgery, according to a report published in the Clinical Journal of the American Society of Nephrology. Researchers studied 76 patients who had late stage chronic kidney disease and were candidates for transplant surgery. They found that kidney function was not noticeably affected before or after the angiography.

And finally, from Australia - Scientists have been unable to pinpoint the precise health effects of smoking marijuana, according to research published in The Lancet. Researchers reviewed nearly 100 studies examining the effects of smoking marijuana. While they found a connection between THC blood levels and car crashes, they could not form a solid link between the drug and other health concerns such as schizophrenia.