- The World Health Organization has invalidated the idea of the "immunity card", as it has stated that there is no certainty that the person who has passed the coronavirus and created antibodies will not take the coronavirus again. Through these statements he has responded to what several governments are proposing: that if antibodies are detected in people, it is taken into account that they have immunity and, therefore, will not be able to infect those around them.
WHO has published a guide with a series of studies and scientific articles for member states. Most of these studies indicate that people who outgrow the coronavirus cause antibodies against this virus, although in some cases very few. Therefore, the WHO notes that "on April 24 there is no research evaluating that the presence of antibodies grants immunity to these people for later recontamination".
Messages issued by governments can influence contagion
The WHO stresses that "if people think they have immunity because the serological test has tested positive for them, they can stop paying attention to health measures, so these certified immunities can increase the risk of contagion".
Risk of confusion with other antibodies
The WHO points out that in order to determine the reliability of serological tests, they must be evaluated more in order to avoid guesses and risks arising from them. He explains that the first error in these tests can be negative for the infected person or, on the contrary, positive for those who have not passed the virus.
The WHO emphasizes that these tests should be able to identify which antibodies have been created by the virus SARS-CoV-2 (the scientific name of the coronavirus) and what other types of coronavirus are known. Four of them are associated with the common flu antibodies, one with respiratory syndromes and the latter with SARS.