Apr 24, 2013 — Concerns about the flu have intensified as the cases and fatalities mount. Transmission of the virus between birds and humans appears to happen fairly easily. It's unclear whether it can spread from one person to another.
Mar 8, 2013 — Why do people in Boston get the flu when it's cold, while people in Senegal get sick when it's hot? Humidity is a big part of the explanation. But how flu spreads in the tropics and more temperate climates appears to be different.
Jan 18, 2013 — The Food and Drug Administration just approved a flu vaccine made by cells taken from the fall armyworm, an agricultural pest. The cells produce copies of a piece of the flu virus's outer coat that primes the immune system. Conventional vaccines use the whole virus and take longer to produce.
Jan 15, 2013 — As students return to class from winter break, campus health official are trying to avert an outbreak. Colleges in Boston are especially worried after the mayor's declaration last week of a public health emergency in the city.
Jan 15, 2013 — It's still too soon to say whether this is a historically bad flu season. But it's already clear that emergency rooms around the country are filled with feverish throngs that are much larger than during the last flu season.
Jan 10, 2013 — Warnings that this year's flu season was likely to be a bad one are already bearing out in Boston. But an infectious disease doctor says the flu season may have already peaked last week.
Jan 8, 2013 — Vaccination is still the best way to avoid getting sick, but it's not 100 percent protective. Some people may get infected with a strain of flu that isn't covered by this year's vaccine. For others, the shots just don't work.
Dec 7, 2012 — The flu is back early this season. And the Centers for Disease Control and Prevention says cases
Aug 3, 2012 — The Centers for Disease Control and Prevention has issued new warnings about a flu virus that infected 16 people in three states in the last few weeks. Almost all the infections occurred in kids who had close contact with pigs at agricultural fairs.
Jul 24, 2012 — The world's top influenza researchers agreed to a voluntary moratorium on working with contagious, lab-altered forms of a particularly worrisome form of bird flu back in January. The hold was supposed to last just 60 days. It's now been more than six months, and scientists don't agree on what should happen next.