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Middle East respiratory syndrome, a cousin of SARS, has sparked global concern for its pandemic potential, but Saudi Arabia has yet to release information that could help protect the rest of the world
It's time to commit to memory a new combination of H and N influenza numbers. Since it arrived on the scene H7N9 has vexed researchers and shown it can be deadly to humans
Health officials are trying to figure out if the virus is moving from person to person
As the number of cases of the paralytic disease fall, world health officials have to grapple with a vexing problem: a component of the most widely used polio vaccine now causes more disease than the virus it is supposed to fight
Are fears of human-to-human transmitted bird flu overblown or does it make sense, based on current fatality rates, to anticipate a worst-case scenario for a future outbreak of H5N1 flu?
For the first time, the polio virus has disappeared from the country for 12 months, but it could still be re-imported from neighboring nations that continue to fight the devastating disease
Is a new strain of H3N2 swine flu a danger to public health or just to the reputations of public health experts?
The next pandemic virus may be circulating on U.S. pig farms, but health officials are struggling to see past the front gate
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