With the start of vaccination campaigns, questions arose about the vaccine and its effectiveness. How much immunity it offers, for how long and what form of protection it provides were among the first questions asked. However, there is one question that remains at the top of the list: Can people still be vaccinated against COVID with the SARS-CoV-2 virus?
The National Steering Committee on Vaccination Against Covid-19 (CNCAV) is trying to answer the most frequently asked questions about the vaccine and its effectiveness. Among people’s curiosities is a justified question: can people who have already been vaccinated be infected from other unvaccinated people? Here’s what the experts say!
“An unvaccinated person can be infected with the SARS-CoV-2 virus and can transmit it to those they come in contact with. Vaccinated contacts (Pfizer / BioNTech vaccine, conditionally approved in the European Union) of the unvaccinated person are protected from the development of Covid-19 disease – even if the virus could reach the respiratory tract, transmitted from a carrier, it will not produce effects, being inactivated by protective antibodies developed after vaccination. “, According to CNCAV.
Thus, the answer is yes, vaccinated people can still become infected to some extent. However, although the virus reaches the body, it will be quickly eliminated by antibodies developed after immunization, without the person developing the disease itself.
This means that the person will not show symptoms specific to the disease and his health will not be altered. In fact, this is the whole principle on which the vaccine technology is based: in case of infection, the antibodies obtained by immunization will fight against the virus, inactivating it before it produces effects.
What is known about transmission from a vaccinated person to an unvaccinated person?
“The main objective of the phase 3 study for the Pfizer / BioNTech vaccine, conditionally approved in the European Union, was not to measure SARS-CoV-2 transmissibility after vaccination, but to demonstrate its effectiveness in preventing Covid-19 disease. Data on the extent to which a vaccinated person can still transmit the virus is to be generated, collected and analyzed in the next period. Experience with other vaccines shows that in general a vaccinated person transmits the pathogen to a lesser extent, but this hypothesis must also be validated for SARS-CoV-2 “, says CNCAV.
Source: Doctorul Zilei by www.doctorulzilei.ro.
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