Is COVID-19 vaccinated at the end of the year at the earliest? Over 40% are still in the first phase of clinical trials. According to the statistics of the World Health Organization, as of November 12th, อย่างน้อย 48 candidate vaccines for COVID-19 pneumonia have entered clinical trials worldwide. ในหมู่พวกเขา, the first stage is the most, accounting for 43.75%. …