A lady holds a small bottle labeled with a “Coronavirus COVID-19 Vaccine” sticker and a medical syringe on this illustration taken October 30, 2020. REUTERS/Dado Ruvic//File Photograph
Oct 18 (Reuters) – The next is a abstract of some latest research on COVID-19. They embrace analysis that warrants additional examine to corroborate the findings and which have but to be licensed by peer evaluate.
Vaccines weaker than anticipated in a number of myeloma sufferers
Coronavirus vaccines are recognized to be much less protecting in individuals with the blood most cancers a number of myeloma, comparable to former U.S. Secretary of State Colin Powell, who died on Monday of problems from COVID-19 regardless of being absolutely vaccinated. The discharge of a brand new examine sheds gentle on the vulnerability of a number of myeloma sufferers to the coronavirus. The examine, anticipated to look on-line on Monday in Cancer Cell, reveals these sufferers not solely produce fewer neutralizing antibodies in response to the vaccines, but additionally have a weak response from the immune system’s T cells. Whereas antibodies assault the virus because it circulates within the physique, T cells assault the cells which have been contaminated, or they produce vital indicators that result in different immune responses, limiting the extent of the an infection. Within the examine of 44 sufferers with a number of myeloma who had acquired each doses of an mRNA vaccine from Pfizer (PFE.N)/BioNTech or Moderna (MRNA.O), these with low or no antibody response to the COVID-19 mRNA additionally had few or no T cells that would have helped to guard them from a extreme COVID-19 an infection, in line with the report. “The sudden lack of T cell responses, coupled with the absence of antibodies following SARS-CoV-2 vaccination, is of concern,” examine chief Dr. Samir Parekh of the Icahn Faculty of Medication at Mount Sinai in New York Metropolis, stated in a press release. The researchers stated the discovering emphasizes the necessity for blood assessments to watch immune responses in these sufferers after vaccination.
Claims of stem cell remedies for COVID-19 are bogus
Quite a few companies have made unsubstantiated and inaccurate claims about supposed stem cell merchandise to deal with COVID-19, researchers stated in a paper on Thursday in the journal Stem Cell Reports. Their paper cites greater than 20 firms which have acquired warning letters from the U.S. Meals and Drug Administration or Federal Commerce Fee for selling unlicensed stem cell remedies for COVID-19. Precisely what number of companies are concerned in manufacturing or promoting these bogus merchandise on to customers is unknown, in line with the authors. Stem cells, from which different cells with specialised capabilities may be generated, are presently used to deal with only some ailments and circumstances. No such remedy has been accredited by authorities regulators for stopping or treating COVID-19. Many ads falsely declare their therapies’ effectiveness and security are supported by proof. “The unfold of such misinformation has potential to trigger actual hurt to affected person security and public well being by making it tough or not possible for sufferers and different members of the general public to tell apart evidence-based scientific claims from pseudoscience and quackery,” the authors stated.
Click on for a Reuters graphic on vaccines in growth.
Reporting by Nancy Lapid; Enhancing by Invoice Berkrot
Our Requirements: The Thomson Reuters Trust Principles.
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