Doctors aren’t saying when or where the patient may have been exposed to the virus.

Sacramento Patient Isolated While Being Tested For #Ebola: http://t.co/dpzu7NupZM — Pauline Bartolone (@CapRadioHealth) August 20, 2014

Patient at Sacramento Kaiser Permanente tested for Ebola http://t.co/Bs2PWzESBW — kcranews (@kcranews) August 20, 2014

Here we go~~ Kaiser South: Testing patient for possible Ebola virus http://t.co/vb7DeK44YF via @news10_ca — DeeWA2008 (@DeeWA2008) August 20, 2014

Uhhhh MT @cbssf Patient being examined for symptoms/exposure to #Ebola in N. CA. CDC reviewing, patient isolated.http://t.co/qr46MIZAXs … — sarahlane (@sarahlaneSF) August 20, 2014

Just heard there's a possible case of Ebola in California… Anyone got a @Pinterest for HazMat suits? — Cory (@CoryUpdate) August 20, 2014

Scary.