Doctors in training may have to do hundreds of stitches in some cases to close the skin after an operation.

VOA: special.2010.02.10

In April,after the first cases in the United States, officials told schools to close at the first sign of an H1N1 outbreak.

VOA: special.2009.08.05

On Tuesday, federal officials in the United States advised schools not to close anymore when they have cases.

VOA: special.2009.05.06

Giving Pope Francis the benefit of the doubt, his tweet might simply suggest that in close cases, companies should keep a worker rather than dismiss him or her.

FORBES: If Pope Francis Despises Poverty, He Must Learn To Love Profits

Justice Anthony Kennedy, often the decisive vote in close cases, joined the four more liberal justices in raising questions about a provision of the federal Defense of Marriage Act that is being challenged at the court.

NPR: High Court Skeptical Of Federal Marriage Law

Around 400 people who have been in close contact with the 11 cases are being monitored.

BBC: WHO confirms five deaths from China bird flu