COVID-19 survivors have long-lasting immunity Today’s Video of the Day from the University of Arizona Health Sciences reveals that people who are infected by COVID-19 produce antibodies that provide lasting immunity,
“We clearly see high-quality antibodies still being produced five to seven months after SARS-CoV-2 infection,” said Dr. Deepta Bhattacharya. “Many concerns have been expressed about immunity against COVID-19 not lasting. We used this study to investigate that question and found immunity is stable for at least five months.”
The experts tracked SARS-CoV-2 antibodies over several months and found that they were present in blood tests at viable levels for at least five to seven months. The researchers believe that immunity lasts much longer. People who were infected with SARS-CoV-1, for example, are still immune 17 years later.
“Whether antibodies provide lasting protection against SARS-CoV-2 has been one of the most difficult questions to answer,” said Dr. Michael D. Dake. “This research not only has given us the ability to accurately test for antibodies against COVID-19, but also has armed us with the knowledge that lasting immunity is a reality.” COVID-19 transmits most often when people breathe in air contaminated by droplets and small airborne particles containing the virus. The risk of breathing these in is highest when people are in close proximity, but they can be inhaled over longer distances, particularly indoors. Therefore COVID-19 survivors have long-lasting immunity as shown above.
Video Credit: University of Arizona Health Sciences, Sarah Sher
By Chrissy Sexton, Earth.com Staff Writer