Preventive measures for accidents in the metallurgical mine

The chute in the stope is an important facility for the handling of ore. Improper protective measures are prone to slipping accidents.

Preventive measures

1. Safe fall protection measures for slipways such as lighting, grid screens, manhole covers or railings must be perfect and reliable, and frequently checked. In case of damage, the fall arrester should be repaired in time.

2. Safety signs, safety hooks and safety belts should be provided at the turn-overs to ensure the safety of the workers.

3. Cover the manhole cover in time for the slipper that is not used temporarily to prevent personnel from falling in.

Attenuated Vaccines (Live)

Influenza Vaccine, Live, Nasal, Freeze-dried is a cooperative project with the WHO, which has been included in Global Action Plan for Influenza Vaccines (GAP)[1]. Hundreds of millions of doses have been used in the world, and Changchun BCHT Biotechnology Co. has the exclusive right of production and

operation in China.

Intranasal spray administration, no injection and no pain

The vaccine is inoculated by nasal spray, equipped with nasal spray device, and only needs to spray once a year in two nostrils to prevent influenza.

Mucosal immunity + Cellular immunity + Humoral immunity

After influenza virus attacks human body, it widely exists in nasal cavity, respiratory tract and other mucosal parts, as well as in body fluids and cells.

Vaccination of Influenza Vaccine, Live, Nasal, Freeze-dried can quickly stimulate the triple immune response of human body, and carry out defense

against viruses in different parts:

·Intranasal administration can produce mucosal immunity (IgA antibody), which forms the first immune defense line in the nasal cavity.

·Produce humoral immunity (IgG antibody) to remove influenza virus from body fluids.

·Produce cellular immunity (T cells) to remove influenza virus from cells

3+N More extensive protection

The production strains are recommended and supplied by the WHO every year.

The vaccine can not only effectively resist the vaccine strain, but also produce cross immunity to other subtypes of influenza virus.

Produced with SPF embryonated eggs


The chick embryos for vaccine production comes from SPF (specific pathogen free) chicken flocks, so the risk of exogenous pathogenic microorganism

pollution is excluded.

Free of inactivator, split agent and preservative

High protection and fast antibody production

This is the first influenza vaccine in China that has been evaluated by the protection effect of etiology in clinical stage. The protective effect of phase III

clinical trial is consistent with the literature.

First, the immune barrier was formed in the nasal mucosa after LAIV vaccination. It has been reported that the antibody of nasal mucosa can be

produced in 3 days, which greatly shortens the time for vaccine to produce

protective effect.

Influenza Vaccine Freeze-Dried,Liquid Influenza Vaccine,Influenza Vaccine Live,Cinfluenza Vaccine Live

Changchun BCHT Biotechnology Co. ,