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Covid increases risk of developing 'extremely rare' Guillain-Barre syndrome, though still rare: Study
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With the delta variant, a study by British researchers found people were well protected when they got both doses of either the AstraZeneca or Pfizer-BioNTech vaccines.
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The study, published on Thursday in the journal JAMA, recruited 45 healthy male volunteers aged 18 to 50 years scheduled for mRNA COVID-19 vaccination by Pfizer-BioNTech and Moderna.
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A study by an international team of researchers suggests that the vaccine may be associated with a condition characterised by low platelet counts
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According to the plan, the US will pay for the doses at a "not for profit" price, which will be distributed through COVAX -- the international vaccine-sharing initiative.
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Passengers arriving in Saudi Arabia must submit a vaccination certificate showing they have received the approved shot, according to guidelines issued by the General Authority of Civil Aviation
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Nearly 51 per cent of Moderna recipients had full-body symptoms, compared with 48 per cent of people who got the Pfizer/BioNTech shot.
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Results showed that following the second dose of vaccine, risk of infection was reduced by 90 per cent two or more weeks after vaccination, the CDC said on Monday.
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The US and German companies said in a statement that the doses come on top of the 300 million initially ordered.
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The WHO had granted emergency use validation for the Pfizer-BioNTech Covid-19 vaccine on December 31, 2020, opening the door for countries to expedite their own regulatory approval processes to import and administer the vaccine.
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The Spanish branch of Pfizer informed Madrid on Sunday night of the delay in shipments to the eight nations due to a "problem in the loading and shipment process" at its plant in Belgium, the health ministry said in a statement.
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People aged over 65 as well as those with chronic ailments or at a high risk of infection will receive the vaccine in the first stage, and those aged over 50 in the second.
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Health officials had feared the US Thanksgiving holiday in late November would lead to a fresh outbreak of the novel coronavirus after millions of Americans traveled to join friends and family.
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The ministry opened registration for the vaccination campaign through an online application called "Sehaty", and said the vaccine would be "free for all citizens and residents".
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Trudeau has previously said the country will receive 249,000 initial doses of the vaccine this month, the first 30,000 doses of which are expected to have arrived by Monday.
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Researchers at Check Point said they have found a stream of posts on the darknet from sources claiming to have a range of "coronavirus vaccines" or "coronavirus remedies" for sale.
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The US has the world's highest death toll of more than 299,000, and the largest number of cases, at 16.2 million -- including more than 1.5 million new cases in just the past week.
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It is more than a sigh of relief as the vaccine that the world was desperately waiting for has finally arrived and more options are on the way
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With northern hemisphere countries hit by a pandemic winter surge, Britain this week became the first Western country to roll out the Pfizer-BioNTech vaccine.
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The Canadian government has said its target is to vaccinate majority of the citizens by September 2021.