Also read: Countries already vaccinating children against Covid-19. Full list here The critically ill mice were treated with monoclonal antibodies, which were effective if given before or in earlier stages of the disease but were ineffective if given in later stages.

Conversely, the immune suppressant dexamethasone was fatal if given in early stages as it suppressed the initial immune response to the virus.

But, if it was given during later stages, it proved effective as it suppressed inflammatory response that could have damaged organs. "Early in the course of the disease, a strong immune response is crucial for survival.

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Sister of nurse who died with Covid-19 'nearly sectioned with grief'

A woman has told of how her grief over her sister's death almost lead to her being sectioned under the Mental Health Act.

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John Mayer tests POSITIVE for COVID-19 and pulls out of Dead and Company's event in Mexico

Just before leaving for Mexico to perform in Dead and Company's Playing in the Sand event this weekend, John Mayer has tested positive for COVID-19.The 44-year-old singer was slated to perform with Dead and Company, an offshoot of the beloved group Grateful Dead, at the event in Cancun, Mexico, via Variety.The news was announced on Dead and Company's Instagram page on Wednesday, revealing Mayer was just about to leave for Mexico when he tested positive and was forced to bow out of the festivities. Positive:Just before leaving for Mexico to perform in Dead and Company's Playing in the Sand event this weekend, John Mayer has tested positive for COVID-19 Update:The news was announced on Dead and Company's Instagram page on Wednesday, revealing Mayer was just about to leave for Mexico when he tested positive and was forced to bow out of the festivities'Today, just prior to leaving for Mexico, per his physician, @JohnMayer tested positive for COVID-19 and will be unable to perform at the upcoming “Playing in the Sand” event in Riviera Cancun January 7-10,' the Company's statement began.'The weekend will now feature Dos Hermanos con Amigos: @MickeyHart and @BobWeir with @JeffChimentiMusic and @Oteil_Burbridge, joined by @LuvrsLane, Tom Hamilton @TRHJunior and including special guests and sit ins including @MissMargoPrice and others,' the statement added.

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NCIS and Chicago Fire pause production after spike in COVID-19 cases due to omicron variant

The TV shows NCIS and Chicago Fire have both paused production amid personnel on each series testing positive for COVID-19.Insiders told Deadline Wednesday that production was halted on the CBS procedural drama NCIS due to the prevalence of a positive test of those in the show's Zone A, which includes cast members and crew they interact with.A cast member on the show is believed to had tested positive, the insider told the outlet. The latest: The TV shows NCIS and Chicago Fire have both paused production amid personnel on each series testing positive for COVID-19.

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Teachers in Ayrshire face mounting workload due to Covid pandemic, reveals EIS study

Teachers returning to Ayrshire classrooms this week are facing a mounting workload due to the Covid pandemic, according to a new survey.

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United States	Cases: 46 252 513 Deaths: 750 423 Recovered: 0
India	Cases: 34 321 025 Deaths: 459 652 Recovered: 0
Brazil	Cases: 21 835 785 Deaths: 608 235 Recovered: 0
United Kingdom	Cases: 9 215 683 Deaths: 141 607 Recovered: 0
Russia	Cases: 8 494 589 Deaths: 237 619 Recovered: 0

Why some COVID patients are more critical than others? Researchers solve mystery

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