The FDA added a new warning.

The FDA added a new warning to The J&J Covid-19 Vaccine information. The warning is linked to Guillain-Barré syndrome, a rare neurological disorder that can cause paralysis.

According to the Washington Post, the FDA issued this additional warning after receiving 100 early reports of individuals developing Guillain-Barré syndrome after receiving the Johnson & Johnson flu vaccine. This is out of 12.8 million vaccination doses given. Cases began to appear two weeks after immunization and were more common in males and those over 50.

According to the latest FDA guidance, this issue has been reported in some people who received The J&J Covid-19 Vaccine. “The majority of these people developed symptoms within 42 days of receiving the [vaccine]. The chances of this happening are extremely slim.” According to the notice, people who experience Guillain-Barré syndrome symptoms should seek medical attention immediately.

The Centers for Disease Control and Prevention (CDC) told CNN that the vaccine has a “small potential risk” of the illness. The CDC’s Advisory Committee on Immunization Practices will discuss this potential risk later this week.

GBS occurs when the immune system attacks its own nerve cells, causing muscle weakness, tingling, and numbness in the arms, hands and feet as well as tingling in the face and legs. Walking, facial movements, eating, and speech may be impaired as the disease progresses. It may also cause double vision and bowel and bladder problems. Guillain-Barré syndrome can cause paralysis. Each type of Guillain-Barré syndrome is identical but often begins in a different part of the body, according to the Mayo Clinic.)

The Mayo Clinic notes that the disease may appear after a gastrointestinal or respiratory infection, such as Zika virus or COVID-19. In most cases, people with Guillain-Barré syndrome need to be admitted to the hospital. Although there is no cure for the disease, immunoglobulin therapy, plasma exchange, and physical therapy may help most patients regain mobility and motor strength. The healing process, on the other hand, can take up to three years for some people.

The FDA previously warned about a possible link between The J&J Covid-19 Vaccine and cerebral venous sinus thrombosis, a rare form of a brain blood clot. Both of these new potential side effects are unsettling, but it’s important to remember that they are rare—and that in most cases, the potential benefits of vaccination outweigh the risks. Individuals who can be vaccinated should do so to protect themselves and others in their immediate vicinity.