[Ingtar]

WHO now says that 42 days is the appropriate quarantine time.

[RinaseaofDs]

Do you have a source? That would qualify as news.

Where did you see this?

[libertarian27]

http://www.who.int/mediacentre/news/ebola/14-october-2014/en/

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Incubation period

The period of 42 days, with active case-finding in place, is twice the maximum incubation period for Ebola virus disease and is considered by WHO as sufficient to generate confidence in a declaration that an Ebola outbreak has ended.

Recent studies conducted in West Africa have demonstrated that 95% of confirmed cases have an incubation period in the range of 1 to 21 days; 98% have an incubation period that falls within the 1 to 42 day interval. WHO is therefore confident that detection of no new cases, with active surveillance in place, throughout this 42-day period means that an Ebola outbreak is indeed over.
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[Shelayne]

WHO now says that 42 days is the appropriate quarantine time.

I believe that is the number of days without cases before you can declare a locale Ebola-free. Two periods of 21-days of quarantine. Nigeria recently announced they were "Ebola free" because they made it through 42 days without any new cases.

At least that they know of.