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What is Disease X?

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What is Disease X and do we need to worry about it?

The term “Disease X” means a new infection, or an existing pathogen that has mutated to become more dangerous, with the potential to cause a global pandemic

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A nurse prepares a shot for Jonathan Halter as the German embassy begins its roll out of BioNTech COVID-19 vaccines for German expatriates at a Beijing United Family hospital in Beijing, China January 5, 2023. REUTERS/Thomas Peter

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Covid-19 'emergency' ended in 2023 but the virus still lingers

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Long covid: What we now know about its causes and possible treatments

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Long covid: What we now know about its causes and possible treatments

Features

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Covid boosters: Why are US and UK vaccine policies so different?

Analysis

Someone being vaccinated against covid-19 in LA, California, in April 2021

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Covid-19 antibodies may give us partial immunity to SARS and MERS

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Someone being tested for SARS-CoV-2 in Milford, Connecticut, in February 2022

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Everything we know about the EG.5 covid-19 variant and its symptoms

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

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

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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

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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

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

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Inhaled powder that coats airways can block coronavirus infection

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Millions of coronavirus mutations offer a new insight into evolution

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AI detects if YouTubers are infected with omicron coronavirus variant

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

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