SAN FRANCISCO — When the coughing stops is probably a better sign of when a swine flu patient is no longer contagious, experts said after seeing new research that suggests the virus can still spread many days after a fever goes away.
The federal Centers for Disease Control and Prevention has been telling people to stay home from work and school and avoid contact with others until a day after their fever breaks. The new research suggests they may need to be careful for longer — especially at home where the risk of spreading the germ is highest.
Swine flu also appears to be contagious longer than ordinary seasonal flu, several experts said.