Antibodies to COVID-19 present in only 2 to 3 percent of population

Antibodies to COVID-19 present in only 2 to 3 percent of population

Bio-Rad Introduces Anti-Ipilimumab Antibodies According to Maria Van Kerkhove, the WHO’s technical lead on COVID-19 added that these figures were much less than what was expected. She added that some countries such as United States, United Kingdom, Germany, and Italy are looking at the development of immunity passports. This may not be immediately possible, she said. Van Kerkhove said, “Right now, we have no evidence that the use of a serological test can show that an individual has immunity or is protected from reinfection.” She explained that serological tests are blood tests that look for antibodies against a specific infection. She added, “These antibody tests will be able to measure that level of seroprevalence – that level of antibodies, but that does not mean that somebody with antibodies means that they are immune.” Dr. Michael Ryan, a colleague of Van Kerkhove, also said, “There are serious ethical issues around the use of such an approach, and we need to address it very carefully, we also need to look at the length of protection that antibodies might give. You might have someone who believes they are seropositive (have been infected) and protected in a situation where they may be exposed, and in fact, they are susceptible to the disease.” Anthony Fauci, the top US infectious-disease expert, had said earlier that he was “willing to bet anything that people who recover are protected against reinfection.” These antibodies containing plasma could also help those with active disease believed experts. Dr. Tedros Adhanom Ghebreyesus, in a Geneva press meet, said, “Easing restrictions is not the end of the epidemic in any country. So-called lockdowns can help to take the heat out of a country’s epidemic.”“Early data suggests that a relatively small percentage of the populations may have been infected,” Dr. Tedros said. “Not more than 2 to 3 percent.” Tedros explained that while he did not negate the utility of antibody tests at present, these tests should be taken along with other tests to check for active infection. He said that the WHO still supported antibody tests that could help researchers “understand the extent of infection in the population.” Relevant studies Stanford University researchers recently have revealed results of their study which showed that those who had been infected with the virus were 85 times more than what was officially reported. This was based on the antibody titers. Santa Clara County had between 48,000 and 81,000 infected persons and most of these patients did not show any symptoms. This was around 3 percent of the population. A study from the Netherlands also showed that 3 percent of the population had antibodies against the virus. China too has reported that 3 percent of the population had antibodies against the infection. Sources: Lifting lockdowns does not signal the end of COVID-19: WHO chief - https://news.un.org/en/story/2020/04/1062172 Coronavirus disease (COVID-19) Pandemic - https://www.who.int/emergencies/diseases/novel-coronavirus-2019



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