Rich countries turn to booster shots. Will the US follow suit?

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YOU ASKED. WE ANSWERED.

A: Covid-19 may be associated with cognitive decline and acceleration of Alzheimer’s-like symptoms, according to an international consortium of researchers who are trying to understand the long-term consequences of the virus on the central nervous system.

Dr. Gabriel de Erausquin, a professor of neurology at the University of Texas Health Science Center, and his colleagues studied more than 200 adults age 60 and older from Argentina who were infected with Covid-19. They found that patients who had a persistent loss of smell were more likely to experience cognitive issues. Three to six months after they were infected, more than half of the patients still struggled with forgetfulness, and about a quarter experienced additional cognitive challenges.

How sick a patient was with Covid-19 was not an indicator of whether they would experience cognitive decline. Erausquin however stressed that the research does not show that Covid-19 increases a person’s risk for Alzheimer’s, and there are some big questions that can only be answered with time.

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