Coronavirus Vaccination Q&A
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What are the contraindications to COVID-19 vaccination?
①Severe allergic reactions during previous vaccination, such as anaphylactic shock, laryngeal edema; ②Various diseases are in the stage of acute fever; ③Acute exacerbation of certain chronic diseases , such as tumor patients during chemotherapy, hypertensive crisis and the onset of some neurological diseases; ④ life has entered the terminal stage due to serious diseases.
2
Senior people over 80 years old, such as disabled and living alone, rarely go out and are very Minimize contact with the outside world, is it necessary to get vaccinated?
necessary. As vaccination coverage increases and the virus mutates, asymptomatic infections are increasing. If a loved one is asymptomatic, the risk of infection is brought to them when they return home or visit the elderly. Once these elderly people are infected, the risk of severe illness and death will be greatly increased if the underlying diseases and the lack of vaccination. Therefore, the elderly should be actively vaccinated against the new coronavirus. Only by increased vaccination rates among older adults can minimize the self-inflicted impact of COVID-19 on older adults. Risk of severe illness and death.
3
Is the current vaccine still effective against the Omicron variant? What is the progress of vaccine development in my country against Omicron mutants?
The Ormicron variant has a certain effect on the neutralizing antibodies induced by various existing vaccines and previous infections. But immune protection is not only dependent on neutralizing antibodies, but also related to cellular immunity and immune memory. Therefore, a number of studies have shown that my country’s vaccine still has a good protective effect on severe disease and death caused by the Omicron variant.< span>AndBoosting immunization further reduces the risk of hospitalization, severe illness, and death.
4
Protection of new coronavirus vaccine against Omicron variant BA.4 and BA.5 How does it work?
Some studies have shown that although the neutralization ability of vaccinated sera against BA.4 and BA.5 has decreased, the cellular immunity generated by vaccination has a negative effect on virus mutation. Tolerance is relatively good. The practice results also show that vaccination still has a good protective effect on pneumonia, severe illness and death caused by BA.4 and BA.5. Therefore, judging from the current situation, everyone should not be too nervous and worried about BA.4 and BA.5, including the new BA.2.75. The key is to do a good job of normalized epidemic prevention and control, including strengthening the vaccination of the elderly.
5
How effective is the coronavirus vaccine?
A large number of clinical research evidences at home and abroad show that the COVID-19 vaccine is very effective in preventing morbidity, severe illness and death , and strengthening immunity can further improve the protective effect. Among people who have been vaccinated against the new crown vaccine, even if there is a breakthrough infection, the risk of severe illness and death is greatly reduced. However, due to differences in immune responses between individuals and the continuous mutation of the virus, the immune protection ability after vaccination is not complete. Similarly, people who have been vaccinated still need to strengthen personal protection.
6
Can older adults with underlying medical conditions be vaccinated against COVID-19?
Judging from the current reality of vaccination at home and abroad, chronic diseases are not contraindications to the new coronavirus vaccination. And it is precisely because of the underlying disease that once infected with the new coronavirus, if there is no vaccination or no vaccination booster, the risk of severe illness or even death is higher, so vaccination is more necessary than others. Currently, patients with chronic diseases such as tumor, hypertension, diabetes, and chronic obstructive pulmonary disease can be vaccinated against COVID-19 as long as their health status is stable and their medications are well controlled.
7
How does the coronavirus vaccine protect the elderly?
Vaccines are very powerful in protecting the elderly from serious clinical consequences. An analysis of the vaccination status of Hong Kong deaths found that the unvaccinated risk of death was 1, 2, and 2 doses, respectively. 3 times, 18 times, and 75 times of those who received 3 doses of vaccine. Analysis of the epidemic data in Shanghai found that the risk of death for unvaccinated people was that of those who had been vaccinated with 1, 2, and 3 doses of the vaccine, respectively. 6 times, 17 times, 53 times . It is fully demonstrated that vaccination against COVID-19 has a very significant protective effect on the elderly, and booster vaccination is also necessary.
8
How safe is the COVID-19 vaccination that has been done in my country?
As of May 30, 2022, more than 3.38 billion doses of COVID-19 vaccine have been reported nationwide, and 238,215 adverse events have been reported after vaccination. The reported incidence was 70.45/1 million. Among the reported adverse events, general reactions accounted for 81.29%, 9.89% of coincidences, and 2.42% of psychogenic reactions. In general, the reporting rates of general, abnormal, and severe abnormal reactions to the new crown vaccine in my country are lower than the reported levels of other routine vaccinations across the country in 2020. So far, countries that use my country’s new crown vaccine on a large scale in the world have not found vaccine safety problems. These data fully demonstrate that my country’s new crown vaccine is very safe.
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