Science & Environnement
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Moderna study suggests half doses offer strong immune response, but experts caution against changing approach
'Significant' immune response from both full and half doses, company's team says
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COVID-19 in the UK: South African strain spreads
Concerns are mounting in the UK after the South African mutant strain was detected in eight areas, with no cases linked to international travel.
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US north-east hit by snowstorm with blizzard-like conditions predicted
New York, New Jersey and Connecticut may see 18in of snow, with storm reaching Massachusetts and northern New England Monday
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Coronavirus: Moderna vaccine ‘effective’ against South African strain
A vaccine manufacturer says it believes it can combat a highly-contagious new COVID-19 strain as Jacinda Ardern delivers a virus-related warning.