(Reuters) – The following is a summary of some of the most recent clinical studies on the new coronavirus and efforts for remedies and vaccines that oppose COVID-19, the disease caused by the virus.
A hong Kong boy has documented for the first time the reinfection of COVID-19
A 33-year-old man recovering from a severe COVID-19 case in April became infected again four months later in the first documented case of huguy reinfection, researchers from the University of Hong Kong said Monday. In August, after returning from Europe, he was diagnosed again, but with another strain of the virus. Although the first infection took him to the hospital, the timing produced no symptoms. Genetically, the first virus was very similar to the strains collected in March/April, while at that time the virus was very similar to the strains collected in July/August, the researchers wrote in a report published by Reuters. “Our effects recommend that SARS-CoV-2 may persist in the global huguy population, as is the case with other huguy coronaviruses relevant to the non-unusual cold,” they said in a statement. “Since immunity may be short-lived after an herbal infection, vaccination also deserves to be considered as for those who have an episode of infection,” the researchers said. “Patients who have already had COVID-19 infection also deserve to comply with epidemiological control measures such as universal masking and social estrangement,” they added. The report was accepted for publication in Clinical Infectious Diseases. (bit.ly/34v5Lii; reut.rs/3l823Rv)
Low oxygen content in COVID-19 pneumonia with vascular enlargement
The enlargement of small blood vessels in the lungs appears to be similar to the low oxygen levels observed in COVID-19 respiratory failure, suggests a small study. The researchers made the discovery by injecting a saline solution with small microbubbles into the veins of 18 patients with severely ill COVID-19 and followed the bubbles using ultrasound. Normally, bubbles pass through the cinput and enter the lungs, but do not pass through the lungs as they do not pass through the capillaries. However, in more than 80% of these patients, the bubbles passed through the lungs and reached the blood vessels of the brain, meaning that the lungs were abnormally dilated, researchers previously reported this month in the American Journal of Respiratory and Critical. Medicine.Array care The more bubbles make their way beyond patients’ lungs, their oxygen grades decrease, according to the researchers. This “may have disproportionate low oxygen levels observed in many patients with COVID-19 pneumonia,” dr. Hooman Poor of Mount Sinai – Reuters told the New York Jewish National Institute of Respiratory Health. Researchers deserve to take into account drug tests that would cause patients’ pulmonary blood vessels to contract, he suggested. An editorial published in the journal Friday publishes that with dilated pulmonary blood vessels, a higher blood volume flows into the brain, which “raises the question of whether the accumulation of coVID-19 neurological headaches may be similar “to the dilation observed through researchers. (bit.ly/32jSLsZ; bit.ly/3jeHtwL)
Genetic ‘barcodes’ can monitor coronavirus mutations
“Genetic barcodes” can help track how the new coronavirus spreads and mutates, researchers said Saturday in the International Journal of Infectious Diseases. Based on the organization, or sequence, of the genetic code of the virus, the researchers knew 11 “barcodes” other than SARS-CoV-2 that constitute other clades, or lineages, descendants of a common viral ancestor. “We were able to characterize about 94% of the world’s sequenced genomes to one of the clades,” King Abdullah University of Science and Technology’s Reuters Arnab Pain, told Reuters Arnab Pain of King Abdullah University of Science and Technology in Saudi Arabia. According to his team, other continents have other variations. Subtle differences in genetic sequences formed through barcodes can be the infectivity of the virus or the severity of the disease, he noted. Most of the genetic profiles to be obtained for the test come from North America and Europe, with COVID-19 cases from other subconstituted regions. Researchers plan to update barcodes as normal. “This is a dynamic process, and some virus clados/subseeds may eventually disappear in the future, and possibly form new clades,” Pain said. “We will continue to monitor viral mutations in the global situation and share our observations with the clinical community.” (bit.ly/31mZVNK)
Open tmsnrt.rs/3a5EyDh in an external browser to view a Reuters chart of vaccines and developing.
Reporting through Nancy Lapid; Editing through Bill Berkrot
All quotes were delayed for at least 15 minutes. See here for a complete list of transactions and delays.
© 2020 Reuters. All rights are reserved.