In December 2019, a new strain of the corona virus, as a subset of coronaviruses was identified for the first time in Wuhan, China. Symptoms included fever, cough, and muscle aches that are very similar to the seasonal flu.
دریافت: 1399/12/1 | انتشار: 1400/2/21 | انتشار الکترونیک: 1400/2/21