How effective is COVID-19 vaccine for children?

At present, China is recommending the process of children's vaccination in COVID-19, but parents are also worried about children's vaccination. So, how many vaccines do children need in COVID-19? What's the effect? The following small series will bring an introduction.

How many shots of COVID-19 vaccine do children need?

All the COVID-19 vaccines given to children this time are inactivated vaccines. Inject twice in the whole process, and the interval between the two injections is at least 3 weeks. Like the inoculation site of adults, it is injected into the deltoid muscle of the lateral upper arm.

How effective is COVID-19 vaccine for children?

Large-scale real-world research on vaccines for people aged ≥ 18 abroad has confirmed the safety of vaccines and their effectiveness in preventing symptomatic infections in COVID-19. For the population aged 3- 17, because there is no condition to carry out phase III clinical trials in China, foreign countries are also carrying out related research on the effectiveness of children, and the research age is as low as 6 months.

There may be parents expressing dissatisfaction here, but it should be emphasized that on the one hand, vaccines that can be proved to be effective for adults are also effective for children in theory; On the other hand, there is a concept of "immune substitution endpoint" in vaccine clinical trials, that is, immunogenicity can replace effectiveness as the result of phase III research.

1. Inoculation failed.

People who have allergic reactions to related ingredients in COVID-19 vaccine; Those who have had severe allergic reaction to the vaccine in the past (such as acute allergic reaction, vascular edema, dyspnea, etc.). ); Those who have had adverse reactions (excluding systemic reactions such as low-grade fever and local swelling and pain) after vaccination with COVID-19 vaccine cannot be vaccinated.

2. Precautions after vaccination

Avoid excessive pressure and stimulation when bathing, and keep local cleanliness after bathing. You can exercise and eat normally, but avoid strenuous exercise and contact with known allergens.

Close observation of physical condition and temperature changes, reactions generally appear within 24 hours after inoculation, and generally gradually subside after one or two days, including local reactions (such as pain, redness, induration, etc. Mild patients generally do not need treatment, and severe patients can be locally hot compressed) and systemic reactions (such as fever, chills, myalgia, headache, diarrhea, etc.). And patients with fever need to go to the hospital for consultation).

For children and adolescents vaccinated in COVID-19, parents should have more opportunities to make their own choices. With the knowledge, willingness and consent of students and parents, schools should cooperate with them to provide services and guarantees for the whole vaccination process, so that teenagers can receive COVID-19 vaccine safely and voluntarily.