The study, detailed in the journal Nature Medicine on Thursday, may explain why so many infected people lose their sense of taste and suggests that the mouth is a major source of the spread of Covid-19. Saliva tests were previously known to be a good way to detect infections, but researchers hadn’t looked to see why.
“When infected saliva is ingested or tiny particles of it are inhaled, we believe that it can potentially transmit SARS-CoV-2 to our throats, lungs or even our guts,” said Dr. Kevin Byrd of the American Dental Association Science. and Research Institute, who worked on the study.
The mouth, nose, sinuses, throat, and lungs are all connected, and the virus can spread to all of these regions in mucus that is drained or coughed up. They reviewed oral tissue samples from people who died from Covid-19 and found the virus in about half of the salivary glands they tested.
The study also found evidence that people who test negative after a nasal swab sometimes continue to test positive on a saliva test, highlighting that even if the virus is cleared from the nasopharynx, the upper part of the throat behind the nose. , could persist in saliva.
YOU ASKED. WE RESPOND.
Q. Can pregnant or lactating women receive the Covid-19 vaccine?
A. This depends on the country you are in. In many parts of the world, Covid-19 vaccines are not available to pregnant women, and in some places inoculation is discouraged for breastfeeding women, due to a lack of data on these groups. In the US, the CDC has not advised pregnant and lactating women to take the vaccine, but allows them to access it, arguing that it is up to the woman how to balance the benefits and risks.
WHAT IS IMPORTANT TODAY
Dangerous variants could mean ‘all bets off’ on the US recovery.
An increase in the number of infections in various states “tells us when we have a more contagious variant that all bets are off because it means that activities that we thought were fairly low risk are now going to be higher risk,” said the analyst. CNN physician Dr. Leana Wen told CNN’s Anderson Cooper on Thursday.
Dr. Rochelle Walensky, director of the US Centers for Disease Control and Prevention, also warned on NBC’s “Today” show that the US “continues to see about 1,000 deaths a day.” , which is “too many”.
President Joe Biden Doubles Vaccination Target During First 100 Days
“I know it’s ambitious, twice our original goal, but no other country in the world has come close, not even close to what we’re doing. I think we can do it,” Biden said.
EU summit becomes contentious as leaders increase pressure on AstraZeneca and the UK
European Union leaders at the virtual meeting confirmed their plans to allow a ban on exporting vaccines in some situations to prevent doses from leaving the shores of the bloc, while it struggles to implement a widespread vaccination program.
ON OUR RADAR
- Do you dream of having a margarita in Mexico? You can visit I Miss My Bar, an interactive website that brings the atmosphere of the Maverick bar in the city of Monterrey.
- Seychelles officials are doing their best to ensure that travelers can return quickly and, more importantly, safely.
- Some workplaces, universities and places of hospitality may require vaccination certificates to allow entry. Rutgers University is one of the first in the United States to require vaccinations for students this fall.
- Covid has a color, writes Catherine Powell. The pandemic has highlighted a number of underlying inequalities in race, including in the workplace, exacerbated by the health crisis and the emerging stay-at-home economy.
- The US government has halted distribution of the Covid-19 antibody treatment developed by drug company Eli Lilly, as authorities say the therapy alone may not work as well against new variants.
“Only after we’ve really gotten through this period where we’ve worked really hard to improve voluntary acceptance should we start to think that mandates are necessary and appropriate.” – Emily Largent, attorney and assistant professor of medical ethics.