Here’s how long coronaviruses may linger on contaminated surfaces, according to science
The new research involved analyzing 22 previously published studies on coronaviruses, which researchers hope can help provide insight into the novel coronavirus.
“Based on the current available data, I would primarily rely on the data from SARS coronavirus, which is the closest relative to the novel coronavirus — with 80% sequence similarity — among the coronaviruses tested. For SARS coronavirus, the range of persistence on surfaces was less than five minutes to nine days,” said Dr. Charles Chiu, an infectious disease professor at the University of California, San Francisco, and director of the USCF-Abbott Viral Diagnostics and Discovery Center, who was not involved in the new study.
“However, it is very difficult to extrapolate these findings to the novel coronavirus due to the different strains, viral titers and environmental conditions that were tested in the various studies and the lack of data on the novel coronavirus itself,” he said. “More research using cultures of the novel coronavirus are needed to establish the duration that it can survive on surfaces.”
The CDC has noted that coronaviruses are thought to spread most often by respiratory droplets, such as droplets in a cough or sneeze, and coronaviruses in general have “poor survivability” on surfaces — but there is still much to learn about the novel coronavirus disease, named COVID-19.
“It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this is not thought to be the main way the virus spreads,” according to the CDC’s website.
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