As the world grapples with the ongoing COVID-19 pandemic, a new study suggests that antibodies -- the proteins produced by the immune system that can grant protection against reinfection -- may fade in as little as two months after infection in certain people who have recovered from the virus. The study
As the world grapples with the ongoing COVID-19 pandemic, a new study suggests that antibodies -- the proteins produced by the immune system that can grant protection against reinfection -- may fade in as little as two months after infection in certain people who have recovered from the virus.
The data suggests that asymptomatic people had a weaker immune response to the virus, echoing NIAID Director Anthony Fauci's concerns about varying antibody protection. However, the study's authors said their results caution against "immunity passports," or the idea that people who have recovered from infection should be granted some sort of special status to allow them to travel or return to work because they are theoretically totally immune from reinfection.Past studies on SARS and MERS, two related coronaviruses that have led to prior outbreaks in people, have found that antibodies last for at least a year.
Story continuesDespite finding innate immunity in most COVID-19 patients, public health officials remain concerned about reinfection. There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection, according to the World Health Organization.
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