Signs and symptoms
... Bird flu viruses are complex, with a number of subtypes and strains that vary considerably from one another. In the broadest terms, however, the viruses are classified as having a low or high chance o...

Causes
... Lying in bed with chills, a spiking fever and that run-over-by-a-truck feeling, you''re not likely to care much about the habits and history of flu viruses. But epidemiologists do care — and wit...

Risk factors
... The greatest risk factor for bird flu seems to be contact with sick birds or with surfaces contaminated by their feathers, saliva or droppings. The World Health Organization (WHO) has confirmed a hand...

When to seek medical advice
... See your doctor immediately if you develop flu symptoms, including a fever, cough and body aches, and have recently traveled to a part of the world where bird flu occurs. Be sure to let your doctor kn...