According to news on December 15, as of press time, Weiming Pharmaceutical reached the limit in late trading, while Sinopec Pharmaceutical rose more than 6%.

On the news side, it was learned from SINOVAC that it had successively obtained two Omicron virus strains from Hong Kong, that is, a neutralization test was carried out. The results of the latest laboratory studies showed that one of the Omicron strains was used to detect neutralizing antibodies in 20 sera immunized with 2 doses of CoronaVac and 48 sera vaccinated with three doses of CoronaVac. The positive rates of neutralizing antibodies in 20 sera after two doses of vaccine and 48 samples after three doses of vaccine were 35% and 94% respectively. The above results show that the third dose vaccine can effectively improve the neutralization ability of serum to Omicron virus strain.