Investigators at Washington University School of Medicine in St. Louis identified a compound that can help sensory neurons in the central nervous system to heal.

Coronavirus vaccines are known to be less protective in people with the blood cancer multiple myeloma, such as former U.S. Secretary of State Colin Powell, who died on Oct. 18 of complications from Covid-19 despite being fully vaccinated. Additionally, in a paper in the journal Stem Cell Reports, researchers said numerous businesses have made unsubstantiated and inaccurate claims about supposed stem cell products to treat Covid-19.

Vertex Pharmaceuticals announced positive Day 90 data from the first patient in the company’s Phase I/II study of VX-880 in type 1 diabetes (T1D). The therapy is a stem cell-derived, fully differentiated pancreatic islet cell replacement therapy.

Omeros, MannKind-United Therapeutics, and Revance Therapeutics were issued Complete Response Letters from the U.S. Food and Drug Administration.

The U.S. Food and Drug Administration approved Seqirus’ Flucelvax Quadrivalent (Influenza Vaccine), the company’s cell-based quadrivalent influenza vaccine, for an expanded age indication for children as young as 6 months old.

The U.S. Food and Drug Administration approved Enzyvant Sciences’s Rethymic (allogeneic processed thymus tissue-agdc) for children with congenital athymia. 

The Delta variant of the coronavirus does not appear to cause more severe disease in children than earlier forms of the virus, a UK study suggests. Another study found that in Covid-19 survivors, important components of the body’s immune response called memory B cells continue to evolve and get stronger for at least several months, producing highly potent antibodies that can neutralize new variants of the virus.

Massachusetts-based Kytopen has seen an influx of cash during the past few months. Most recently, the biotech raised a large chunk of money in the company’s Series A funding round, which was announced on Sept. 28.

A protein called CD47 that helps damaged cells avoid destruction by the immune system may be contributing to severe cases of Covid-19, researchers suggested in a report. In other news, Gilead Sciences Inc.’s intravenous antiviral drug remdesivir helped keep high-risk Covid-19 patients out of the hospital in a randomized trial.

Two weeks after winning U.S. approval as a treatment for adults with Waldenstrom’s macroglobulinemia, BeiGene’s Brukinsa scored again as a treatment for adult patients with relapsed or refractory marginal zone lymphoma (MZL).