Some might not have COVID-19 symptoms because of the common cold, scientists suggest
Scientists have a new theory about why some people are asymptomatic to the novel coronavirus — the common cold.
- Scientists are working to find out why some people who get the novel coronavirus never experience any symptoms.
- One theory suggests that “prior exposure to other viruses may help fight off the novel coronavirus,” according to ABC News.
- One of those other coronaviruses could be the common cold.
Research on common cold and COVID-19
- Researchers at La Jolla Institute for Immunology published findings in the journal Cell that looked into human responses to COVID-19.
- People who had the virus before had a strong immune response to the virus since it was recognized.
- But 40% to 60% of those who never had COVID-19 also had an immune response.
- Researchers believe it’s possible humans can recognize the coronavirus because they were exposed to “its close cousins — the coronavirus strains that cause the common cold,” ABC News reports.
- A separate study published in Science looked at blood samples. It found that cells reacted to COVID-19 as they would to four other coronaviruses, one of which causes the common cold, Yahoo! News reports.