Pfizer was founded in 1849 and has a history of more than 70 years. Headquartered in new york, USA, it is a scientific, innovative and patient-centered biopharmaceutical company. Pfizer's goal is to "bring breakthrough innovations that change patients' lives". Pfizer entered the China market on 1989. Having been rooted in China for more than 30 years, Pfizer has become one of the major foreign pharmaceutical companies in China.

Research achievements of Pfizer Pharmaceutical Co., Ltd.:

202 1 12.7 According to Sky News, the latest laboratory test data in South Africa show that the efficacy of Pfizer vaccine against Omicron strain in the United States is reduced to 1/4 1 compared with the early strain.

According to the manuscript, the study was led by Alex Sigal, a virologist at the African Institute of Health. The researchers used two Pfizer vaccinators and two COVID-19 mutants for the test. Finally, it was found that the efficacy of Pfizer vaccine antibody against early strains was about 465,438 0.4 times that of Omicron.

Refer to the above? Baidu encyclopedia-Pfizer pharmaceutical co., ltd.