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COVID-19

Vaccine may limit long-COVID impact but controlled trials needed --new studies

Two new observational studies suggest that COVID-19 vaccination lowers long-COVID incidence and severity, although the authors of a related commentary say trials comparing vaccination with a placebo are needed. The research was published yesterday in BMJ Medicine.

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New studies indicate high level of Covid in toilet samples of US-bound planes, and effectiveness of pre-departure testing

Two new studies from Morbidity and Mortality Weekly Report highlight new findings about air travel amid COVID-19, with one showing that 81% of wastewater samples from airplane restrooms had SARS-CoV-2 Omicron variant genetic material in fall 2022, and the other suggesting that predeparture testing of international travelers was tied to a 52% lower positivity rate at arrival in the United States.

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