According to US media reports, American epidemiologists predicted on April 30 that the COVID-19 pneumonia epidemic may continue to spread in the United States for at least 18 months to 2 years until 60%-70% of the population is infected. ตามรายงานของซีเอ็นเอ็น, Mike, head of the Center for Infectious Disease Research and Policy at the University of Minnesota, said: “นี้ …