1, Changchun undead
Located in Changchun High-tech Industrial Development Zone, it is a high-tech enterprise recognized by the Ministry of Science and Technology. The company is mainly responsible for the research, production and sales of biological high-tech products. In 20 17 years, Changchun Changsheng's revenue153.9 billion, accounting for more than 99% of the revenue of listed companies. Later, because of the fake vaccine case that sensationalized the whole country, Changchun Changsheng went bankrupt, and it was also the company with the highest annual interest rate in recent years.
2. Kangtai Bio
Located in Nanshan District, Shenzhen, it is committed to developing vaccine series products that can prevent diseases caused by viruses and bacteria. In 2008, Kangtai Bio carried out strategic capital reorganization with a registered capital of 357 million yuan. In 2009, the development of 23-valent Streptococcus pneumoniae polysaccharide vaccine was started, and some achievements have been made after years of efforts.
3. Changchun High-tech
Located in Jilin Province, the main products are chicken pox vaccine and rabies vaccine for human use, and the products under research include nasal spray influenza vaccine, freeze-dried rabies vaccine, herpes zoster vaccine and 13 valence pneumonia vaccine. 20 19 top 500 listed companies, ranking 143.
4. COVID-19 vaccine of Wuhan traditional Chinese medicine.
WeChat official account, the WeChat of Sinopharm Group, announced that the effective rate of two kinds of inactivated COVID-19 vaccines by Wuhan Institute of Biological Products (WIBP) was 72.8%. Most of the adverse reactions were pain at the injection site, mild, transient and self-limited.
5. Tianjin Kangxinuo adenovirus vector vaccine
Protection rate: The protection effect of single needle inoculation on severe COVID-19 was 100%, and the overall protection effect was 74.8%.
Generally speaking, the most effective vaccine in COVID-19 is the inactivated Covid-19 vaccine in Beijing Kexing. In fact, there is no need to ask which COVID-19 vaccine is more efficient, because no matter which brand, you can safely vaccinate. It is recognized by the state and is safe and secure.