Extended data
Novel coronavirus vaccine is a vaccine for novel coronavirus.
On June 24th, 2020, China CDC successfully isolated the first novel coronavirus in China. On February 25th, 20021,four kinds of COVID-19 vaccines were conditionally marketed in China, including three inactivated vaccines and one adenovirus vector vaccine. On March 8th of the same year, Finnish researchers developed a nasal COVID-19 vaccine, and the clinical trial is about to begin.
On September 9th, 20021year, the preclinical study of inactivated vaccine against Delta mutant was completed in China. Vaccine research and development units have also carried out research and development of adenovirus vector vaccines and nucleic acid vaccines for β and δ strains.
Some people may have uncomfortable reactions after vaccination with COVID-19 vaccine, including headache, loss of appetite, vomiting and so on. The inoculation site may be red, swollen, sore and itchy. These are normal conditions, and will disappear on their own in 2-3 days. If the symptoms persist or are serious after vaccination, you should go to the hospital in time.
Almost all drugs combine benefits and risks, but as long as their effectiveness far exceeds their possible harm, they have application value. Like other types of inactivated vaccines, some people may feel uncomfortable after being vaccinated with COVID-19 vaccine due to their personal constitution.
Vaccination with COVID-19 vaccine has certain risks, but the adverse reactions are usually mild, such as pain, redness, induration, swelling, itching, erythema and local hypoesthesia at the inoculation site. Some people also have symptoms of general discomfort such as fatigue, fever, headache, dizziness, cough and loss of appetite, and usually the symptoms will disappear by themselves within 2-3 days. At present, people who have been vaccinated with more than 6.5438 million doses of vaccine have no serious adverse reactions, but their constitutions are different. If the symptoms persist or are serious after vaccination, you should go to the hospital in time.
Usually within 30 minutes. Adverse reactions after vaccination in COVID-19 usually occur within 30 minutes after vaccination, so the vaccinator should rest at the inoculation site for at least 30 minutes after vaccination in COVID-19, and report to the vaccinator in time if he feels unwell. Moreover, the inoculation site should be kept dry and hygienic on the day of inoculation, and rest should be arranged properly. Avoid contact with previously known and common allergens within one week after inoculation, try to avoid drinking alcohol, eating spicy and seafood foods, having a light diet and drinking plenty of water.