x Health Men's Health Children's Health Nutrition and Wellness Reproductive Health Health & Science Digital News Videos Opinions Cartoons Education E-Paper Lifestyle & Entertainment Nairobian Entertainment Eve Woman Travelog TV Stations KTN Home KTN News BTV KTN Farmers TV Radio Stations Radio Maisha Spice FM Vybez Radio Enterprise BULK SMS E-Learning Digger Classified The Standard Group Corporate Contact Us Rate Card Vacancies DCX O.M Portal Corporate Email RMS
Login ×
BTV
VAS
DCX
RMS

CDC revises guidance, says Covid-19 can spread through virus lingering in air

Health & Science - By Reuters | October 6th 2020 at 11:01:54 GMT +0300

U.S. Centers for Disease Control and Prevention (CDC) on Monday said Covid-19 can spread through virus lingering in the air, sometimes for hours, acknowledging concerns widely voiced by public health experts about airborne transmission of the virus.

The CDC guidance comes weeks after the agency published – and then took down – a similar warning, sparking debate over how the virus spreads.

In Monday’s guidance, CDC said there was evidence that people with Covid-19 possibly infected others who were more than 6 feet away, within enclosed spaces with poor ventilation.

Under such circumstances, CDC said scientists believe the amount of infectious smaller droplet and particles, or aerosols, produced by the people with Covid-19 become concentrated enough to spread the virus.

Covid 19 Time Series

 

The CDC has long warned of transmission through small droplets that shoot through the air and generally fall to the ground, which resulted in the six-feet social distancing rule. Aerosol droplets are much smaller still, and can remain suspended in the air, like smoke.

While CDC stresses close-contact transmission is more common than through air, a group of U.S. scientists warned in an unrelated open letter published in medical journal Science on Monday that aerosols lingering in the air could be a major source of Covid-19 transmission.

“The reality is airborne transmission is the main way that transmission happens at close range with prolonged contact,” the researchers said in a press call.

Viruses in aerosols can remain in the air for seconds to hours, travel more than two meters and accumulate in poorly ventilated indoor air, leading to superspreading events, the researchers said.

Since individuals with Covid-19 release thousands of virus-laden aerosols and far fewer droplets while breathing and talking, the scientists said the focus must be on protecting against airborne transmission.

They also said that public health officials should clearly differentiate between droplets ejected by coughing or sneezing and aerosols that can carry the virus to greater distances

Public health officials must highlight the importance of moving activities outdoors and improving indoor air, along with wearing mask and social distancing, the letter said.


CDC Covid-19
Be The First To Comment

Top Stories

How borehole water hurts your health
Health & Science - By Gatonye Gathura


400 more test Covid-19 positive as counties receive vaccine
Health & Science - By Betty Njeru


Eve D’Souza narrates Covid-19 jab experience
Health & Science - By Jael Mboga


Detaining patients illegal, court declares
Health & Science - By Kamau Muthoni


Covid-19 vaccination exercise kicks off at KNH
Health & Science - By Graham Kajilwa


Dr Amoth first public officer to get Covid-19 vaccine
Health & Science - By Jael Mboga


President Uhuru flags off national distribution of Covid-19 vaccine
Health & Science - By Graham Kajilwa and Sara Okuoro


Shot in the arm for counties as Uhuru flags off vaccines
Health & Science - By Graham Kajilwa and Peterson Githaiga


Focus turns on 15 counties as HIV infections rise
Health & Science - By Mercy Adhiambo


Nothing has been left to chance, says Kagwe as vaccine roll-out set for Friday
Health & Science - By Judah Ben-Hur


Latest Stories

Covid-19 vaccination exercise kicks off at KNH
Health & Science - By Graham Kajilwa


Merck says study shows COVID-19 drug causes quick reduction in virus
Health & Science - By Reuters


Kenya records 633 new Covid-19 cases
Health & Science - By Vincent Kejitan


Eve D’Souza narrates Covid-19 jab experience
Health & Science - By Jael Mboga


Detaining patients illegal, court declares
Health & Science - By Kamau Muthoni


Shot in the arm for counties as Uhuru flags off vaccines
Health & Science - By Graham Kajilwa and Peterson Githaiga


Covid-19 vaccine to be administered today
Health & Science - By Beldeen Waliaula


400 more test Covid-19 positive as counties receive vaccine
Health & Science - By Betty Njeru


Dr Amoth first public officer to get Covid-19 vaccine
Health & Science - By Jael Mboga


Why Covid jab got cold reception at airport
Health & Science - By Graham Kajilwa


//

Stay Ahead!

Access premium content only available
to our subscribers.

Or Login With Your Standard Account
Support independent journalism
×
Create An Account
Support independent journalism
I have an account Log in
Reset Password
Support independent journalism
Log in