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Two Florida laws, enacted to combat prescription drug abuse and misuse in that state, led to a small but significant decrease in the amount of opioids prescribed the first year the laws were in place.

People infected with the hepatitis C virus are at risk for liver damage, but the results of a new Johns Hopkins study now show the infection may also spell heart trouble.

Organ transplant recipients are twice as likely to develop melanoma as people who do not undergo a transplant, and three times more likely to die of the dangerous skin cancer, suggests new research.

Johns Hopkins Bloomberg School of Public Health researchers say they have developed a method that could make a nasal spray flu vaccine effective for those under two and over 49 – two groups for which the vaccine is not approved.