Any travellers returning to B.C. are encouraged to check the public health agency's website for updates about flights identified for the risk of exposure. Image captured and color-enhanced at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland.
Previously, the federal health agency had said the coronavirus spreads mainly between people within about six feet of one another and through direct propulsion of exhaled droplets that land in the noses and mouths of individuals nearby.
However, droplets can also land on surfaces and objects and be transferred by touch.
Public health agencies such as CDC and the World Health Organization agree on that - it's why they've recommended that people avoid "confined and enclosed spaces with poor ventilation" and gather outdoors when possible. "In fact, my concern is not theoretical", Gonsalves said, pointing to the CDC report.
As scientists and medical experts have begun to better understand the novel coronavirus in the months since the pandemic began, a growing consensus is emerging about how COVID can be spread from person to person.
Superspreader events, such as the one that occurred at a choir rehearsal in Skagit, Washington in March, are part of the evidence indicating the virus can spread through aerosols.
The CDC said a draft version of changes to its recommendations were posted in error on its website while it was in the process of updating its guidance. CDC is now updating its recommendations regarding airborne transmission of SARS-CoV-2 (the virus that causes COVID-19).
The top infectious disease expert's comments come days after the CDC posted an update to their guidelines on September 18 that acknowledged the virus could in fact be spread through the air.
Currently, WHO guidance considers surgical masks to be adequately protective for healthcare staffers working with potential COVID-19 patients, and advises using N95 masks in limited situations, such as when intubating patients, which is known to generate small particles from deep in the lungs.
The Africa CDC also said the number of people who have recovered from the infectious virus across the continent has reached 1,184, 645 so far. "This change in infection patterns underscores the need to fortify vulnerable populations, especially those in nursing homes and assisted living centers, to insulate them from chains of viral transmission".
Mike Ryan, executive director of the United Nations agency's emergencies program, speaks at a news conference in Geneva, Switzerland, on February 6, 2020.
"There have been reported outbreaks of COVID-19 in some closed settings, such as restaurants, nightclubs, places of worship or places of work where people were maybe shouting, talking, or singing". "In general, indoor environments without good ventilation increase this risk".
And while younger people are less likely to have severe COVID, the virus will make some drastically ill, Adalja added.
The new recommendations had stated that the coronavirus spreads most commonly in the air, through droplets or other tiny respiratory particles that apparently can remain suspended and inhaled.
Cape Town - The World Health Organisation (WHO) recently commended South Africa for its declining Covid-19 infection rate, approving the implementation of public health measures to curb the spread of the virus.