Web Analytics Made Easy - StatCounter

Can sunlight kill the Coronavirus?

Can sunlight kill the Coronavirus?

In view of the current realities and rules/regulations imposed on everyone to have social distancing and the need to stay away from crowded areas as much as possible, we feel it is vital to have a balanced perspective on certain matters pertaining to public health. Should you stay home all the time, thereby depriving yourself of Sunlight or Vitamin D(aka Sunshine Vitamin). How about coming into contact with surfaces that do have the Coronavirus? Will sunlight kill the Coronavirus? We did some research and found something interesting. Please read the brief extract below on how sunlight may affect the Coronavirus that we are facing right now.

Previous studies have demonstrated that SARS-CoV-2 is stable on surfaces for extended periods under indoor conditions. In the present study, simulated sunlight rapidly inactivated SARS-CoV-2 suspended in either simulated saliva or culture media and dried on stainless steel coupons. Ninety percent of infectious virus was inactivated every 6.8 minutes in simulated saliva and every 14.3 minutes in culture media when exposed to simulated sunlight representative of the summer solstice at 40°N latitude at sea level on a clear day. Significant inactivation also occurred, albeit at a slower rate, under lower simulated sunlight levels. The present study provides the first evidence that sunlight may rapidly inactivate SARS-CoV-2 on surfaces, suggesting that persistence, and subsequently exposure risk, may vary significantly between indoor and outdoor environments. Additionally, these data indicate that natural sunlight may be effective as a disinfectant for contaminated nonporous materials. The full article can be found here at: https://academic.oup.com/jid/article/222/2/214/5841129

Incidentally, while we were researching the above, we came across another interesting article that mentioned that sunlight exposure increased Covid-19 recovery rates. This study was done in Jakarta, Indonesia. Please read the brief extract below.

This study aims to present the correlation between sunlight exposure and Covid-19 statuses in Jakarta, Indonesia. The secondary data analysis was derived from surveillance data for Covid-19 from government authorities, including the Ministry of Health, the Meteorological, Climatological, and Geophysical Agency, and the local government of Jakarta. Three statuses related to Covid-19 were examined in the study: incidence, death, and recovered. Meanwhile, sunlight exposure was presented as daily duration of it. Only the number of recovered patients correlated significantly with sunlight exposure (p-value = .025; r = 0.350). This study’s findings showed that sunlight exposure was associated with recovery from Covid-19. The full article can be found here at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7184988/

Hence, some form of exposure to sunlight might be helpful in light of this “Coronavirus Pandemic“!

Leave a Reply