A slower gait is a natural outcome of the ageing process, but mobility problems can result if the walking speed falls sharply. Everyday activities such as crossing the street before the traffic lights change become increasingly difficult, and there may be a heightened risk of falling as well as a gradual loss of independence if the condition worsens.
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Indian study finds big drop in COVID antibodies within four months of vaccination
Waning antibodies do not necessarily mean that immunised people lose their ability to counter the disease, as the body’s memory cells may still kick in to offer substantial protection, said the director of a state-run institute that did the study.
“After six months, we should be able to tell you more clearly whether and when a booster would be needed,” Sanghamitra Pati of the Regional Medical Research Centre, based in the eastern city of Bhubaneswar, told Reuters on Tuesday.
Novavax expects to make available at least 2 bln COVID-19 vaccine doses in 2022
“We’re already engaging in conversations about incremental procurement for the second half of 2022, as well as early 2023, especially given current vaccination rates around the globe,” said John Trizzino, chief commercial officer at Novavax, adding that the booster strategy would create additional demand for its vaccines.
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