Johnson & Johnson’s beleaguered Covid-19 vaccine may be associated with a small increased risk of Guillain–Barré syndrome, a rare but potentially serious neurological condition, federal officials said on Monday. So far, there have been 100 reports of the syndrome in people who had received the Johnson & Johnson vaccine. Guillain-Barré is a rare condition in which the body’s immune system attacks nerve cells. Although the symptoms often pass within weeks, in some cases, the condition can cause permanent nerve damage. The precise cause of the syndrome is unknown, but in many cases the condition follows another illness or infection, such as the flu.

Source: New York Times July 12, 2021 22:32 UTC