covid 19 News and Research

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Nearly 70 weeks after infection, long COVID patients show no detectable inflammation in blood tests

A controlled Norwegian case-control study examined circulating biomarkers of inflammation and neuronal injury in people with long COVID about 69 weeks after infection. The researchers found no significant differences in systemic inflammatory or neuroinjury markers compared with recovered controls after statistical correction.

4 Mar 2026

Newer nurses face the highest risk of developing moral injury symptoms

Moral injury remains prevalent among critical care nurses, with newer nurses at the highest risk of developing symptoms, according to new research published in American Journal of Critical Care.

4 Mar 2026

Study uncovers a biological cause for persistent taste loss after COVID-19

Some individuals have experienced a loss of taste long after a COVID-19 infection has subsided. Researchers from the Swedish University of Agricultural Sciences, Uppsala University and the University of Colorado have now shown that this may be due to a disruption in taste cells that would otherwise give rise to experiences of sweet, bitter or umami.

4 Mar 2026

Natural fungal supplement strengthens vaccine protection without increasing side effects

Researchers at University California San Diego School of Medicine have found that a natural fungal supplement taken at the time of COVID-19 vaccination reduced short-term vaccine side effects and helped antibodies - the body's natural immune defenders - last longer in people who had not previously been exposed to the virus.

4 Mar 2026

Substance use among healthcare workers linked to poorer patient care

Their job is to protect, promote, and restore human health and lives, but healthcare workers believe that their own use of alcohol and illegal drugs reduces the quality of care they provide to patients.

3 Mar 2026

Global breast cancer burden rising fastest in low-income countries

Despite recent advancements in breast cancer treatments, new breast cancer cases in women are predicted to rise by a third globally from 2.3 million in 2023 to more than 3.5 million in 2050.

2 Mar 2026

Persistent taste dysfunction after COVID 19 linked to cellular abnormalities

Scientists have identified molecular and structural changes in taste buds that may explain why a small subset of people experience long-term taste loss after COVID-19 infection.

2 Mar 2026

High-dose curcumin fails to produce lasting gut-microbiome changes in IBD patients

In an open-label study of 29 men, including patients with ulcerative colitis and Crohn’s disease in remission, 6 g per day of curcumin for eight weeks led to modest, transient shifts in gut microbiota composition without sustained restructuring. Despite achieving high fecal concentrations and minimal systemic bioavailability, curcumin did not produce durable microbiome changes, and disease activity scores remained stable.

2 Mar 2026

How zinc deficiency could worsen heart inflammation and what that means for patients

This review examines how zinc regulates inflammatory and redox signaling pathways involved in myocarditis and pericarditis, highlighting mechanisms such as NF-κB inhibition and the redox zinc switch. The authors conclude that maintaining optimal zinc status may support cardiovascular resilience, while emphasizing that clinical translation requires further targeted trials.

1 Mar 2026

Telemedicine visits cost far less than in-person care

Telemedicine visits are five times less costly than in-person appointments for the most common conditions able to be treated by both forms of visits, new research from the Perelman School of Medicine at the University of Pennsylvania shows.

25 Feb 2026

RSV and COVID-19 trigger different immune responses in infants

Young infants hospitalized with respiratory syncytial virus (RSV) often become much sicker compared to those infected with SARS-CoV-2, the virus that causes COVID-19.

25 Feb 2026

Prior COVID infection increases kidney disease risk

Approximately one in seven adults in the United States has kidney disease, where the organs responsible for filtering waste and excess water from the blood are damaged, according to the Centers for Disease Control and Prevention.

25 Feb 2026

Lingering brain inflammation found after mild COVID infection

Even a mild case of COVID-19 or the flu can impact the body long after the fever and cough fade, according to new Tulane University research that may help explain why some people struggle to feel fully recovered weeks or months later.

25 Feb 2026

Moments of awe show measurable links to reduced loneliness in daily life

Daily diary data from healthcare workers and community adults during COVID lockdowns showed that people reported less loneliness on days when they experienced greater awe. This association was partly explained by increased feelings of connectedness to nature, although the observational design prevents causal conclusions.

23 Feb 2026

Study identifies antiviral protein IFN-γ as a potential biomarker for Long COVID fatigue

SARS-CoV-2 triggers the production of the antiviral protein IFN-γ, which is associated with fatigue, muscle ache and depression.

23 Feb 2026

Frontline healthcare workers experienced highest insomnia rates during and after pandemic

An analysis co-led by Josefa A. Antón Ruiz, a researcher from the Department of Health Psychology at the University of Alicante (UA), reveals that 43.5% of healthcare professionals experienced clinically significant symptoms of insomnia during and after the COVID-19 pandemic.

23 Feb 2026