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In severe cases, Streptococcus pneumoniae bacteria can cause pneumonia and serious blood infections

Covid-19 pandemic tied to antibiotic resistance in pneumonia bacterium

16 February 2023

A modelling study suggests that the proportion of cases involving pneumonia-causing bacteria that are resistant to antibiotics has increased amid the covid-19 pandemic


A person has their temperature checked before entering a market in Coata, Peru, in July 2020

Nearly 15 million excess deaths occurred globally in 2020 and 2021

14 December 2022

World Health Organization research suggests that during just the first two years of the pandemic, 14.83 million more deaths occurred worldwide than would otherwise have been expected


The omicron coronavirus variant binding to a cell's ACE2 receptor

Drug that targets ACE2 receptors may work against new covid variants

5 December 2022

A drug that is approved for treating gallstones and liver conditions inhibits cells' ACE2 receptors, which the coronavirus' spike protein binds to


The omicron sub-variant BQ.1.1 has mutations that may help it to spread and perhaps evade past immunity

A soup of omicron subvariants could drive the next covid-19 wave

31 October 2022

The subvariants BQ.1.1 and XBB may somewhat evade prior immunity, however, further research is required


A coloured scanning electron micrograph of a cell (green) infected with the omicron variant of the coronavirus (purple)

The omicron coronavirus variant may protect against flu

19 September 2022

In a laboratory study, the H1N1 seasonal flu virus didn't take hold in bronchial cells containing the omicron coronavirus variant, but the flu virus did replicate in cells containing the delta variant


More than half of people who are infected with omicron may be unaware they are carrying the virus

More than half of people infected with omicron may not know it

17 August 2022

Out of 210 people who had antibodies suggesting they had recently had the covid-19 omicron variant, more than half were unaware they were carrying the virus


Hair loss may be a long covid symptom

Long covid symptoms may include hair loss and ejaculation difficulties

25 July 2022

A study of 2.4 million health records suggests the World Health Organization's set of 33 long covid symptoms may be too limited


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