Airmen from the 146th Airlift Wing of the California Air National Guard in Oxnard, Calif., deliver 200 ventilators to the New York Air National Guard's 105th Airlift wing at Stewart Air National Guard Base, adjacent to Newburgh, N.Y. (Senior Airman Jonathan Lane/U.S. Air National Guard via AP)

The Strategic National Stockpile is nearly out of the protective N95 respirators, surgical masks, face shields, gowns and other supplies medical professionals use while treating COVID-19 patients. A health department spokeswoman said 10 percent of the stockpile will be reserved to support federal response efforts. The supplies are expected to be replenished by the end of April.