The following is a roundup of probably the most latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for Covid-19, the illness caused by the virus.
Wildfire smoke likely helped to spread Covid-19
Large wildfires could also be linked to increases in Covid-19 cases and deaths in the San Francisco area, according to a paper in the European Review for Medical and Pharmacological Sciences. Researchers found that between March and September, increases in smoke particles, other wildfire pollutants and carbon monoxide levels corresponded to increases in day-to-day Covid-19 diagnoses and complete Covid-19 deaths. While correlation does not necessarily intent causality, coauthor Sultan Ayoub Meo of King Saud University in Saudi Arabia said air pollution provides a means for viruses to move around the surroundings. These tiny pollution particles, in conjunction with the microorganisms they carry, “can easily be inhaled deep into the lungs and cause infections,” Meo said. “Carbon monoxide is a highly poisonous gas which can damage our lungs, resulting as a triggering factor for an increase in Covid-19 cases and deaths in the wildfire region,” he told Reuters.
Antiviral mouthwash could help curb coronavirus transmission
Mouthwashes with antiviral ingredients could help decrease Covid-19 transmission by reducing viral loads in the mouths of infected patients when they cough, sneeze or speak, according to a paper in the Publication of Dental Research published on Thursday. Studies have found that rinses containing cetylpyridinium chloride or povidone-iodine can minimize the oral coronavirus load; other promising compounds include hydrogen peroxide, chlorhexidine, cyclodextrin, Citrox, and sure fundamental oils. Coauthor Dr. Florence Carrouel of University Claude Bernard Lyon in France told Reuters everyone will have to be the usage of these mouthwashes because people can also be infected and not are aware of it. While more studies are needed to decide appropriate regimens, she suggests the usage of three doses of antiviral mouthwash the day before a assembly, and one dose the morning of the event. Covid-19 patients will have to be the usage of mouthwash ceaselessly for seven to 10 days.
Common-cold antibodies may hijack body’s Covid-19 response
A phenomenon called “antigenic sin” may give an explanation for why some Covid-19 patients turn into critically ill, researchers say. Because the new virus shares some features with coronaviruses that cause common colds, the body’s immune response can include antibodies that in the past learned to recognize and attack those older viruses. This can in turn detract from the body’s ability to fight Covid-19, because the common bloodless antibodies do not reliably attack the new virus. In severely ill Covid-19 patients, the immune response directed at other coronaviruses is higher than in mildly ill patients, researchers reported on medRxiv ahead of peer review. This situation – when the body reacts to a new invader based on its “reminiscence” of preceding invaders – has been seen before and is named “original antigenic sin.” New vaccines should be capable to immediate an immune response against this new virus, not merely boost immune responses toward common bloodless viruses, said coauthor Gijsbert van Nierop of Erasmus Medical Center in The Netherlands told Reuters.
Powerful bowel-disease drugs appear secure throughout pandemic
People with inflammatory bowel disease (IBD) do not increase their risk for Covid-19 by taking immunosuppressive drugs to regulate their symptoms, according to a study of more than 5,300 patients with Crohn’s disease or ulcerative colitis published on Thursday in the medical publication Inflammatory Bowel Diseases. “After weighing other known risk factors for Covid-19, including age, race, and other medical issues, we found that immunosuppressive therapy was once not associated with an increased risk of Covid-19,” coauthor Dr. Kristin Burke of Massachusetts General Hospital and Harvard Medical School told Reuters. “Amongst the people with IBD that got Covid-19, we also found that use of immunosuppressive medications did not increase risk of getting severe disease, which we defined as disease requiring hospitalization, intensive care unit stay, or death.” As other studies have shown, on the other hand, older age and obesity were risk factors for severe Covid-19 in these patients, too.
(This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.)
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