AstraZeneca’s COVID-19 vaccine shows a hint that it may reduce transmission of the virus and offers strong protection for three months on just a single dose, researchers said Wednesday in an encouraging turn in the campaign to suppress the outbreak.
LONDON (Reuters) - The Pfizer-BioNTech COVID-19 vaccine may be less able to protect against infection with a South African variant of the virus that has a worrying mutation, according to results of a British study released on Tuesday.
Nearly a year into the coronavirus pandemic, as thousands of patients are dying every day in the United States and widespread vaccination is still months away, doctors have precious few drugs to fight the virus.
A handful of therapies — remdesivir, monoclonal antibodies and the steroid dexamethasone — have improved the care of Covid patients, putting doctors in a better position than they were when the virus surged last spring. But these drugs are not cure-alls and they’re not for everyone, and efforts to repurpose other drugs, or discover new ones, have not had much success.
Lab-made antibodies are showing promise for preventing Covid-19 infection in those at high risk of contracting the disease. With vaccines in short supply in the United States and elsewhere, the drugs could be used to provide short-term protection until people can get vaccinated.
ANCHORAGE, Alaska (Reuters) - Earth’s ice is melting faster today than in the mid-1990s, new research suggests, as climate change nudges global temperatures ever higher.
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