New Type of Antibody Shows Promise Against Multiple Forms of Flu Virus Dec. 21 ... A responsible for the 2009 H1N1 pandemic -- pdm09 -- shows that the virus has passed from humans to swine ...

Two types of influenza viruses are responsible for seasonal ... and pigs (such as in the 2009 H1N1 "Swine Flu" pandemic). In contrast, influenza B can only infect humans and is less likely to ...

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

Cold and flu may seem alike, but knowing their key differences can prevent serious health risks. Learn how to recognize and ...

The winter virus season in the United States is in full swing, with flu cases surging to levels not seen in over a decade.