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Thousands of families in Southern California's Seamy Valley fled their homes on Monday as crews raced to contain the fast-burning sandy fire.

The blaze has already scorched more than 1,300 acres, and the strong Santa Ana winds

threatened to make the fires worse. Officials are expanding evacuation warnings, telling communities

along the Ventura County line, like Agora Hills, Calabasas, and Thousand Oaks, to stay on high alert.

Students in the Simi Valley Unified School District

were also out of class on Tuesday after administrators shuttered seven campuses that fell within the

evacuation zone. According to Mayor Karen Bass, firefighters don't expect the flames to reach Los Angeles.

But across the San Fernando Valley, a smell

and sight of smoke raised concerns, including over poor air quality. A spokesperson for the Los

Angeles Fire Department says in a statement that residents with respiratory conditions should

stay indoors and keep their windows closed. Also, the World Health Organization says it is deeply concerned about a rapidly spreading Ebola virus outbreak.

According to the Who, there's been over 500 suspected cases in more than 130 deaths

in the Democratic Republic of Congo and Uganda.

Dr. Celine Gounder is an infectious disease specialist who worked in West Africa during the 2014

Ebola epidemic.

She says this outbreak could become a larger regional epidemic.

I am not worried about a pandemic with Bundybujo Ebola virus, but I am worried about a large regional epidemic.

And that could result in some cases here in the United States and elsewhere.

Because of the high infection rate of the virus, the U.S. State Department is recommending

Americans not visit the Democratic Republic of Congo, Uganda the U.S. State Department is recommending Americans not visit the Democratic Republic

of Congo, Uganda, or South Sudan. Ebola can be spread from person to person through bodily fluids

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