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Could the avian flu be our next pandemic threat?
What does it mean that H5N1 bird flu, also known as highly pathogenic avian influenza A, is spreading among dairy cows? And how should U.S. health systems — and consumers of milk products — be responding?
Is an increase in penile length cause for concern?
Researchers have found that over the past 30 years the length of the average erect penis has increased, and it's prompted questions.