New study results indicate that different comorbid conditions affecting individuals diagnosed with COVID-19 may impact how long they continue to receive positive SARS-CoV-2 polymerase chain reaction (PCR) test results.
A new study using cells, transgenic mouse models, and cultured human lung tissue provides evidence that the ability to trigger programmed cell death (apoptosis) may enable highly pathogenic coronaviruses to spread within their hosts so successfully. Targeting this process may reduce the severity of coronavirus diseases, the study goes on to show.
The University of Ottawa has been awarded four new Canada Research Chairs (CRC) that will strengthen its expertise in artificial intelligence, health and law, plus the renewal of two CRCs that will conduct leading-edge research in quantum communications and photonics.
Various immune cells in the brainstem cause formation of inflammatory nodules
To gain a better understanding of SARS-CoV-2 outbreaks involving care homes with fully vaccinated residents, Charité researchers used an outbreak at a Berlin-based facility to analyze virus-related data and the immune responses of elderly residents following vaccination. The data confirm vaccine effectiveness in the elderly, but also indicate a delayed and slightly reduced immune response. The researchers emphasize the need to vaccinate both caregivers and close contacts in order to better protect this high-risk group.
A new infectious disease model that accounts for people's 'level of caution' or 'sense of safety' accurately captures surges and declines in COVID-19 cases since March 2020 -- and could help predict how the pandemic will eventually end.
UC San Diego School of Medicine researchers discovered gene expression patterns associated with pandemic viral infections, providing a map to help define patients' immune responses, measure disease severity, predict outcomes and test therapies -- for current and future pandemics.
A new Cleveland Clinic-led study has identified mechanisms by which COVID-19 can lead to Alzheimer's disease-like dementia. The findings, published in Alzheimer's Research & Therapy, indicate an overlap between COVID-19 and brain changes common in Alzheimer's, and may help inform risk management and therapeutic strategies for COVID-19-associated cognitive impairment.
An international team of researchers have shed new light on the early stages of viral evolution.
The term 'wet market' is often laced with negative undertones, especially in light of the COVID-19 pandemic, but the majority of these markets -- like the one featured above in Taipei, Taiwan -- pose very little risks to human health and biodiversity, according to a new study by Princeton University researchers.