FINDINGS Researchers at the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA have identified rare, naturally occurring T cells that are capable of targeting a protein found in SARS-CoV-2 and a range of other coronaviruses. The findings suggest that a component of this protein, called viral polymerase, could potentially be added
A new paper published in Cell by Charitè group opens new perspectives to complement role in Covid-19 Highlights •Severe COVID-19 is marked by activated, highly cytotoxic CD16+ T cells •Immune complex-mediated degranulation of CD16+ T cells causes endothelial cell injury •C3a-rich environment in severe COVID-19 promotes differentiation of CD16+ T cells •Activated CD16+ T cells and complement proteins are
This article was originally published here JAMA Netw Open. 2021 Dec 1;4(12):e2140364. doi: 10.1001/jamanetworkopen.2021.40364. ABSTRACT IMPORTANCE: Little is known about the factors associated with COVID-19 vaccine adverse effects in a real-world population. OBJECTIVE: To evaluate factors potentially associated with participant-reported adverse effects after COVID-19 vaccination. DESIGN, SETTING, AND PARTICIPANTS: The COVID-19 Citizen Science Study, an online
Human and animal study offers insight into treating periodontal disease and other inflammatory disorders. Blocking function of a blood-clotting protein prevented bone loss from periodontal (gum) disease in mice, according to research led by scientists at the National Institute of Dental and Craniofacial Research (NIDCR), part of the National Institutes of Health. Drawing on animal
“Test, test, test.” This is how Tedros Adhanom , director general of the World Health Organization (WHO), urged the countries at the beginning of the covid-19 pandemic. Testing, isolation and contact tracing should be – and have been in many cases – the “backbone of the global response” to the crisis, according to the head of the agency. According to experts,
The rapid spread of the SARS-CoV-2 Omicron variant suggests that the virus might become globally dominant. Further, the high number of mutations in the viral spike-protein raised concerns that the virus might evade antibodies induced by infection or vaccination. In thi paper on Cell are reported that the Omicron spike was resistant against most therapeutic
In what they describe as the most comprehensive analysis to date of the SARS-CoV-2 virus’s distribution and persistence in the body and brain, scientists at the U.S. National Institutes of Health said they found the pathogen is capable of replicating in human cells well beyond the respiratory tract. The results, released online Saturday in a
Summary: Vaccine effectiveness: o The two-dose Pfizer-BioNTech vaccination provides 70% protection against severe complications of COVID-19 requiring hospitalisation, and 33% protection against COVID-19 infection, during the current Omicron wave. Reinfection risk: For individuals who have had COVID-19 previously, the risk of reinfection with Omicron is significantly higher, relative to prior variants. Severity: The risk of hospital admission
Immunotherapy with so-called CAR-T cells has established itself for the treatment of various leukemias (blood cancer) and lymphomas (lymph gland cancer). A team led by Dr. Kai Rejeski and Prof. Marion Subklewe from the Medical Clinic III of the LMU Klinikum found that many patients suffer from a side effect that initially fell under the radar: a
The vaccination of more than four billion people and the lack of access for many others, were major forces this year, while Omicron’s arrival complicated things further. A year ago, vaccine drives against COVID-19 were just beginning. Now, more than 4.4 billion people have had one or more dose — about 56% of the world
