They might share many of the same symptoms, but the cold and the flu really are two very different things, starting with what causes them. Trace explains what you can and can't do when either of them comes calling your name.
One of the dominant flu strains infecting people now is a mutated form that the flu shot may not protect against.
As plague claims more lives, authorities scramble to kill infected fleas in the poorest neighborhoods.
Laci Green examines some of history's most horrifying and death-dealing illnesses, the kind that lay waste to entire populations.
The illness is potentially deadly for the individuals, who have never been exposed to it before.
A team of researchers has produced an experimental vaccine for the deadly H7N9 flu strain.
A debilitating mosquito-borne disease once confined to Africa and Asia has now spread to the Caribbean and may make its way across North and South America.
Is the newest strain of bird flu jumping to people? Continue reading →
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