Public Health

COVID-19 linked to dangerous eye problems, study shows

In a new study, researchers found strong abnormalities in the eyes of some people with severe COVID-19. The results support the need for eye screening...

First test for all known human coronaviruses, including new COVID-19 variants

In a new study, researchers have set the stage for the development of highly sensitive antibody tests for infection with all known human coronaviruses,...

Zinc and vitamin C cannot help fight COVID-19

In a new study, researchers found that vitamin C and zinc supplements don't help COVID-19 patients recover from their illness. Giving one or the other,...

Death risk in COVID-19 3.5 times higher than in flu

In a new study, researchers found that the risk of death from COVID-19 was 3.5 times higher than from influenza. They found patients admitted to...

COVID-19 vaccinations: What you need to know about the second dose

In Canada, currently approved COVID-19 vaccines—from Moderna and Pfizer-BioNTech—have demonstrated remarkable efficacy based on two doses taken at specified intervals. But what happens if you...

This study shows the leading risk factor for COVID-19 hospitalization

In a recent study from Geisinger, researchers found that chronic kidney disease is the leading risk factor for hospitalization from COVID-19. The study is published...

At least 50% of COVID-19 infections come from people with no symptoms

In a new study, researchers found that during the initial wave of the COVID-19 outbreak in New York City, only 1 in 5 to...

COVID-19 is a ‘stress test’ for the heart

As we continue to learn more about COVID-19, caused by the novel coronavirus SARS-CoV-2, it is not yet clear all the ways the disease...

One dose of vaccine may be enough for COVID-19 survivors

Although clinical trial data are encouraging, real-world evidence with regard to the COVID-19 vaccine remains scarce. In particular, response to the vaccine among those previously...

Humidity from masks may reduce severity of COVID-19

Masks help protect the people wearing them from getting or spreading SARS-CoV-2, the virus that causes COVID-19. In a new study, researchers found evidence for...