Hualan vaccine: Freeze-dried b-type Influenza Streptococcus pneumoniae vaccine granted approval for clinical drug trials.

Hualan Vaccine Announcement: Recently received the "Drug Clinical Trial Approval Notice" issued by the National Medical Products Administration regarding the freeze-dried b-type influenza haemophilus influenzae combined vaccine. This vaccine is composed of purified Hib polysaccharide and tetanus toxoid protein, in freeze-dried form, expected to induce an immune response against Hib after vaccination, providing protection for the vaccinated. In addition, the company is developing a combination vaccine based on the components of DTP, with the Hib vaccine as one of its components. Vaccine development is a complex and rigorous scientific activity, with high difficulty and long duration.