The vomiting bug?

From the BBC News article:

A spokeswoman for the Health Protection Agency said: "There are several vaccines for norovirus in development but all are probably several years away from being in general use.

"In the meantime, until one is produced that is effective and safe we recommend strict adherence to the outbreak control measures that exist to stop the virus spreading in hospitals and cruise ships.

"On an individual level, if someone has a norovirus infection they are advised to stay at home and practise good hand hygiene using soap and water to stop the virus from spreading to other members of the household."

Click here to access the BBC News article.