Merck is a company located in Kennyworth, New Jersey, USA, with about 70,000 employees worldwide. In 20 14, Merck's global sales reached $42.2 billion, and R&D's investment reached $6.5 billion.
In addition to prescription drug business, Merck also includes animal health care business in China. Nearly 50 kinds of veterinary drug products involve many fields such as disease prevention, treatment and control of livestock, poultry and pets, and are committed to protecting and caring for animal health and human health.
Action principle of hpv vaccine:
A large number of laboratory and clinical research data show that the immune response of hpv host plays a very important role in controlling hpv infection and related diseases. Patients with human papillomavirus precancerous lesions and cervical cancer generally have low immunity to human papillomavirus. Hpv preventive vaccine mainly takes the virus-like particles of L 1, which has a natural spatial structure, as the target antigen, induces the body to produce high titer serum neutralizing antibodies to neutralize the virus, and assists tumor-specific killing T lymphocytes to eliminate virus infection.