How contagious is the Omicron variant among those vaccinated?
How contagious is the Omicron variant among those vaccinated?
COVID-19Common questionHow contagious is the Omicron variant among those vaccinated?Researchers compared the spread of omicron and of delta among members of the same household and concluded that omicron is about 2.7 to 3.7 times more infectious than the delta variant among vaccinated and boosted individuals.
Is it safe to take over-the-counter medicine after the COVID-19 vaccine?
COVID-19Common questionIs it safe to take over-the-counter medicine after the COVID-19 vaccine?You can take over-the-counter medicine after your vaccination to help with any pain or to lower a fever. Ask your health care provider how to manage any symptoms and if you're concerned about any symptoms post-vaccination.
What is the percentage of people who need to be immune against COVID-19 in order to achieve herd immunity?
COVID-19Common questionSee full answerWhat is the percentage of people who need to be immune against COVID-19 in order to achieve herd immunity?We are still learning about immunity to COVID-19. Most people who are infected with COVID-19 develop an immune response within the first few weeks, but we don’t know how strong or lasting that immune response is, or how it differs for different people. There have also been reports of people infected with COVID-19 for a second time. Until we better understand COVID-19 immunity, it will not be possible to know how much of a population is immune and how long that immunity last for, let alone make future predictions. These challenges should preclude any plans that try to increase immunity within a population by allowing people to get infected.
What is the interval between doses of the Sinopharm COVID-19 vaccine?
COVID-19Common questionWhat is the interval between doses of the Sinopharm COVID-19 vaccine?WHO recommends an interval of 3–4 weeks between the first and second dose. If the second dose is administered less than 3 weeks after the first, the dose does not need to be repeated. If administration of the second dose is delayed beyond 4 weeks, it should be given at the earliest possible opportunity.Sept 2, 2021
What is herd immunity in terms of COVID-19?
COVID-19Common questionWhat is herd immunity in terms of COVID-19?Herd immunity', also known as 'population immunity', is the indirect protection from an infectious disease that happens when a population is immune either through vaccination or immunity developed through previous infection. WHO supports achieving 'herd immunity' through vaccination, not by allowing a disease to spread through any segment of the population, as this would result in unnecessary cases and deaths.
Are people who received the COVID-19 booster vaccines getting COVID-19?
COVID-19Common questionAre people who received the COVID-19 booster vaccines getting COVID-19?Public health experts say while fully vaccinated and boosted individuals are reporting an increase in cases, they continue to be milder infections than unvaccinated individuals.
How long does it take for COVID-19 symptoms to occur after exposure?
COVID-19Common questionHow long does it take for COVID-19 symptoms to occur after exposure?Symptoms may take up to 14 days to appear after exposure to COVID-19.