Nearly three fourths of all influenza infections each season are asymptomatic, according to a recent study, indicating officials know less about the influenza virus than once thought.
What does this mean? The study concluded that the human body might be more capable at fighting off or at least quelling the influenza virus than what is commonly thought. Health organization in North America and Europe both push for vaccination for the seasonal influenza virus in order to help stifle the virus's spread, but it has been revealed by past studies of these same organizations that the influenza virus only proves effective at preventing an infection 50 to 60 percent of the time.
The study was funded by the Medical Research Council and Wellcome Trust and published by The Lancet on March 17, 2014.