This story goes deeper and indicates stroke rate is higher with Covid and again warns medical people of younger stroke victims to be checked for Covid to prevent infection of others.

https://www.ctvnews.ca/health/coronavirus/for-some-covid-19-patients-the-first-symptom-is-not-a-cough-but-a-stroke-1.5106398

Stroke patients in this group had a mortality rate of 59 per cent.

Compared to similar respiratory illnesses, COVID-19’s link to strokes was much stronger.

COVID-19 patients are ten times more likely than influenza patients to suffer a stroke, and more than twice as likely as SARS patients, according to the study.

Scientists believe that strokes linked to COVID-19 are different than the regular kind.

In these cases, scientists think the virus enters some cells that line the blood vessels, triggering inflammation and potentially causing blood clots to form in the lungs, the legs or the heart.

“There's something interesting about other comorbidities that these patients have, for example, if you look at clots in the pulmonary arteries, [they] are 14 times more frequent in patients with stroke and COVID-19 than with patients with stroke and no signs of COVID-19, based on historical data from Canada,” Sposato said.

These clots can even move to the brain. This causes an ischemic stroke, where an artery blockage cuts off blood flow to the brain.

In this study, the number of patients who developed large clots in the arteries that specifically supply blood to the brain was much higher than previous studies of ischemic stroke patients who did not have COVID-19, with 49 per cent developing large clots versus 29 per cent in patients without COVID-19.