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A raccoon dog (Nyctereutes procyonoides)

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Covid-19 may have started in raccoon dogs, new DNA evidence shows

Swabs taken from various surfaces at a seafood and live animal market in Wuhan, China, that were positive for the coronavirus also have evidence of DNA from raccoon dogs

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Big cats, such as lions and tigers, have tested positive for the coronavirus before, but this is the first known case of a lion probably transmitting the infection to zoo workers

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Lion infected with covid-19 probably passed it on to two zoo workers

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

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Covid-19 pandemic tied to antibiotic resistance in pneumonia bacterium

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SARS-CoV-2 could evolve into new variants that may evade existing vaccines

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Inhaled powder that coats airways can block coronavirus infection

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Researchers have suggested that monitoring audio clips on social media could be a relatively quick, inexpensive way of tracking coronavirus cases in the community

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AI detects if YouTubers are infected with omicron coronavirus variant

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People queue up to receive the Medigen and Moderna vaccines for the Covid-19 coronavirus at Taipei's main train station on April 29, 2022. (Photo by Sam Yeh / AFP) (Photo by SAM YEH/AFP via Getty Images)

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Why we probably won't get new covid-19 vaccines in 2023

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TOPSHOT - Staff members from the Hoshinoya Tokyo hotel demonstrate the

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The covid-19 pandemic’s third year saw countries adopt new approaches

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

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Nearly 15 million excess deaths occurred globally in 2020 and 2021

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

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Drug that targets ACE2 receptors may work against new covid variants

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Children may be more susceptible to seasonal infections like the respiratory syncytial virus (RSV) this winter compared with in pre-pandemic years

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Do we have 'immunity debt' and how could it affect our infection risk?

The covid-19 lockdowns undoubtedly saved many lives, but the prolonged restrictions also reduced our exposure and immunity to other infections, which could be set to spike in the UK this winter

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Flu, RSV and cost of living will all harm UK child health this winter

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

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Covid jab rates vary in England in children of different ethnicities

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Fewer boys born in England and Wales in early stage of the pandemic

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