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A scanning electron micrograph of the delta SARS-CoV-2 variant (pink dots) budding from a human gut cell

The covid-19 virus affects our gut – but we still don't know how

3 May 2023

The coronavirus commonly causes gastrointestinal symptoms, but whether this is due to inflammation, disruption to our microbiome or the virus affecting the permeability of our gut wall is unclear


A raccoon dog (Nyctereutes procyonoides)

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

17 March 2023

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


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

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

4 March 2023

A lion at Potawatomi Zoo in South Bend, Indiana, tested positive for the SARS-CoV-2 coronavirus after it started coughing and became breathless. Zoo workers who had cared for the lion later caught the infection


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


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

Inhaled powder that coats airways can block coronavirus infection

9 February 2023

A gel that lines the respiratory tract prevented coronavirus infections in mice and monkeys, and may also work against any future new variants


The coronavirus is continuing to mutate as it spreads

Millions of coronavirus mutations offer a new insight into evolution

7 February 2023

Using publicly available SARS-CoV-2 sequences, researchers have revealed the genetic sites that must be in a particular state for the coronavirus to survive and which can tolerate changes


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

AI detects if YouTubers are infected with omicron coronavirus variant

19 January 2023

An artificial intelligence picked up on audio samples where the speaker was probably infected with omicron with 80 per cent accuracy, potentially offering an inexpensive way of tracking cases


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)

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

28 December 2022

Any new covid-19 vaccine must be better than the ones we already have, setting a high bar for approval that is not expected to be met in 2023


A child sitting in a hospital bed

Why are children catching so many illnesses this winter?

20 December 2022

Many countries in the northern hemisphere are seeing surges of childhood respiratory infections like influenza and RSV. While this is partly because child infections fell during covid-19 restrictions, that isn’t the whole story


Nuclear power plant

Biggest science news stories of 2022 as chosen by New Scientist

16 December 2022

Nuclear fusion, infectious diseases and an incredible new space telescope were ongoing stories in 2022, but what were some of the other big scientific developments, discoveries and events of the year?


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