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Increasing the vaccination rate is the most effective way to reduce the number of confirmed cases and implement the new social distancing step stably. A study result showed that 'cross-vaccination', which is given by mixing different types of COVID-19 vaccines, has a greater immune effect than regular vaccination.
By Kim Jung-woo, staff reporter.
<Reporter> A
research team at Oxford University in the UK
published a
study showing that cross-vaccination of AstraZeneca and Pfizer vaccines has a greater immune effect than two doses of AstraZeneca vaccine alone.
The research team cross-vaccined 830 volunteers 50 years of age and older. AstraZeneca and Pfizer showed greater antibody and immune cell responses than Pfizer and AstraZeneca.
It is not necessary to generalize cross-inoculation in the current state of sufficient vaccine supply, but it is an assessment that it will be helpful for countries with insufficient supply.
[Matthew Snape / Oxford University Professor: The vaccine ago when I saw Think I be the world what used to, it is very important this' cross-vaccination "Research]
team for vaccination through more than six months after AstraZeneca vaccinated twice hit Studies have also shown that the immune effect is greater when the dose is used, and that the immune response is enhanced when the interval between the 1st and 2nd vaccinations is increased to 45 weeks.
While several related studies are being conducted according to the spread of vaccines, a paper has been published in the United States that the preventive effect of mRNA-based vaccines such as Pfizer and Moderna can last for several years.
A research team at the University of Washington in the United States said, "If there is no mutant virus that bypasses the preventive effect of the vaccine, in theory, the immune effect can last for a lifetime."