The COVID19 vaccine rollout has started all around the world in an effort to end the deadly pandemic, which has claimed many lives. However, health experts are worried that people who are getting the vaccine are being overconfident about their immunity and not following precautionary measures such as wearing masks, maintaining social distance, and going back to their normal daily routine. They have said that it can lead to reinfection. Experts have said that though COVID19 vaccines developed by Pfizer and Moderna are 95 percent effective still some people can contract the SARS-CoV-2 virus after being fully vaccinated with the two doses. Professor Jonathan Gershoni from the Shmunis School of Biomedicine and Cancer Research at Tel Aviv University has said that there can be many reasons why people can fall sick again with COVID19 after receiving full doses of the vaccines. He has said that two leading vaccines, Pfizer and Moderna have been proved to be only 95 percent effective in their clinical trials, which means that one out of 20 people who have received full doses of the vaccine might not have enough protection against contracting the virus again. The data from John Hopkins University as well have shown the same.
Health experts have noted that new strains of the virus as well can be a potential factor in causing reinfection among people who have been vaccinated. Experts have said that vaccines, which have been developed by Pfizer and Moderna, are designed to target the original strain of coronavirus. Since the original strain of the virus has been discovered and genetically sequenced in Wuhan, China, the virus has multiplied itself into thousands of new variants. Experts have said that some of these variants are capable of dodging the efficiency of the vaccines. For example, the majority of COVID19 cases in Israel are the outcome of the UK variant. Dr. Gershoni has said that currently available vaccines for COVID19 have been proved to be quite effective against the UK strain but they might not be as efficient against the variant that has been found in South Africa. He has said that there might be some other unknown variants of the virus, which might be more resistant to vaccines. Health experts have said that immunity is also a number game. They have said that an infection or vaccine can help the body to build some immunity against the virus but if a person is identified with a severely high virus load and has been shedding the virus load, it is possible that a large amount of virus load will break through the immunity and make per person fall ill. Experts have said that in such a case, it will lead to only mild disease.
Scientists have said that every person is different and their own molecular immunological makeup is quite different as well. Gershoni has said that some people tend to be very robust and can stand against infection and some are very vulnerable to diseases. Israel is on the verge of vaccinating its five million people but there is a full range of people with diverse levels of immune ability. He has warned about some breakthrough infections; in such cases, people have contracted the virus before they have received the second dose of the vaccine. However, people who are identified as breakthrough cases will not develop severe COVID19 disease and will not face death due to disease. Health ministry data have shown that vaccination can render breakthrough cases as mild diseases. As per the report, only 4711 out of 3387340 people who have been vaccinated with the full two doses have been diagnosed with the disease, which is less than 0.2 percent of people. Experts have said that only 907 out of 4711 people have developed symptoms of the disease and only 429 people have been admitted to the hospital. Around 271 people have been diagnosed with a severe form of the disease. The health ministry has revealed that 99 people have lost their lives due to the disease after being fully vaccinated.