The virus is contagious and is believed to spread from human to human in much the same way as seasonal flu. The most common mechanisms by which it spreads are by droplets from coughs and sneezes of infected people, and also potentially touching a surface or the hand of a person contaminated with the virus and then touching one's eyes, nose or mouth.[15] In 2009, the WHO reported that H1N1/09 seemed to be more contagious than seasonal flu.[16] However, a New England Journal of Medicine report stated that the transmissibility of the 2009 H1N1 influenza virus in households was lower than that seen in past pandemics.[17] The US CDC recommended that people should wait at least a day after their fever subsides (usually 3–4 days after the onset of symptoms) before resuming normal activities, but it has been found that they can continue to shed virus for several days after that.[18]