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Covid-19 can lead to neurological complications, including strokes, seizures and movement disorders, researchers have found. The complications, which go well beyond cognitive impairment, can occur even in moderate cases, according to a study published Wednesday in the journal Neurology: Clinical Practice. (Prior, 12/10)

When Morgan McElroy suddenly stopped being able to smell and taste earlier this month, she wasn’t all that surprised. Her mother, whom she lives with in Dayton, Ohio, had recently started showing symptoms of covid-19, the disease caused by the novel coronavirus, and McElroy, 20, figured that she had also been infected. What McElroy didn’t expect, though, was to find herself in the emergency room a day later — swollen and covered in a red, itchy, hivelike rash that was spreading all over her body. (Chiu, 12/10)

In recent weeks, pharmaceutical giants Pfizer and Moderna published data showing their vaccines to be more than 90% effective -- results hailed as a major scientific achievement. "I wasn't even sure if we'd be able to do it -- or if the vaccines would work at all," Dr. David Kimberlin, an infectious disease pediatrician at the University of Alabama and prior president of the Pediatric Infectious Disease Society, told ABC News. (Fathy, 12/11)

Much remains unknown about the coronavirus, such as why some healthy people get sick and die while others recover unscathed. The mysteries also include how long natural immunity lasts after infection. But one thing is clear: experiencing COVID-19 is more risky than not. That’s why health experts recommend getting the coronavirus vaccine when one is authorized and available in your state — even if you’ve already been sick and recovered. (Camero, 12/9)