Vaccines are the most effective way to build immunity against COVID-19. Vaccine-induced immunity is achieved when a person is fully vaccinated with an approved or authorized COVID-19 vaccine. Research indicates that protection against the virus may decline over time, so additional doses (boosters) are now authorized for certain populations. These boosters can extend the powerful protection offered by COVID-19 vaccines. In addition, people who have been exposed to COVID-19 are also expected to develop immunity against it.
When you have immunity, your body can recognize and fight the virus. The immune system is a complex network of cells, tissues and organs that work together to protect the body from infections and diseases. Vaccines create immunity against specific diseases, such as COVID-19. COVID-19 vaccines, our best defense against the virus, reduce our risk of contracting and spreading the virus and help prevent serious illness and death. Some medicines and home remedies can help treat mild to moderate cases of COVID.
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