China News Service, Guangzhou, November 14 (Cai Minjie, Lu Xudong) A seminar on the prevention and control of vaccine-preventable diseases under the new crown epidemic was held in Guangzhou recently.

Zhang Yonghui, chief expert of the Guangdong Preventive Medicine Association, said at the meeting that the risk of simultaneous epidemics of influenza and new crown virus is high, and the co-infection of new crown and influenza can increase the risk of severe illness and death. In addition, autumn and winter are the peak seasons for pneumococcal infection. At the critical stage of control, it is necessary to guard against infectious diseases caused by influenza virus and pneumococcus.

  Prior to this, the country and Guangdong have issued guidelines for flu prevention and control.

  Zhang Yonghui said that the flu, like the new crown, can be prevented by vaccination. In the context of the current high-incidence period of influenza, to do a good job in influenza prevention and control, it is necessary to strengthen the prevention and control of the new crown epidemic while advancing the influenza vaccination work. .

  Pneumococcus is mainly transmitted directly through respiratory droplets or autologous infection caused by colonizing bacteria.

In the autumn and winter, pneumococcus is highly prevalent.

Zhang Yonghui said that autumn and winter are periods of high incidence of respiratory infectious diseases, and the prevention and control of influenza, pneumonia, chickenpox, mumps and other diseases should be strengthened.

  "Currently and for some time to come, the prevention and control of the new crown epidemic is still our top priority in the field of public health. However, in addition to the prevention and control of the new crown epidemic, we must also pay attention to the prevention and control of other epidemic diseases such as influenza and pneumonia. Zhang Yonghui said that studies at home and abroad have confirmed that the combined vaccination of influenza and pneumonia for the elderly can effectively prevent respiratory-related diseases and has a high cost-effectiveness.

  The time and duration of the peak of influenza activity in different parts of my country each year are different. In order to obtain protection before the high-incidence season of influenza, it should be vaccinated as soon as possible after the influenza vaccine that year is on the market.

Generally speaking, a protective level of antibodies can be produced in the body 2 to 4 weeks after vaccination, and the antibody titer begins to decay after 6 to 8 months. Therefore, the "Technical Guidelines for Influenza Vaccination in China (2021-2022)" recommends that every year Get the flu vaccine.

  Zhang Yonghui believes that, in principle, all people who are 6 months old and above who are willing to get the flu vaccine and have no contraindications can get the flu vaccine.

In order to obtain protection before the flu season, the ideal period of flu vaccination is from September to October to ensure protection before the flu season. It usually takes 2 to 4 weeks after flu vaccination to produce effective immunity. force.

If you fail to vaccinate during the above-mentioned period, you can also vaccinate as soon as possible at any time during the epidemic season.