Europe’s medicines regulator is reviewing reports of a rare nerve-degenerating disorder in people who received AstraZeneca’s Covid-19 shots, raising fresh questions about potential side effects of the vaccine.

The United States is likely to see outbreaks of the Zika virus, with perhaps dozens or scores of people affected, said Dr. Anthony Fauci, director of the U.S. National Institute of Allergy and Infectious Diseases, on Sunday.   The United States has seen more than 350 cases of people who were infected abroad and then […]

Scientists in Brazil have uncovered a new brain disorder associated with Zika infections in adults: an autoimmune syndrome called acute disseminated encephalomyelitis, or ADEM, that attacks the brain and spinal cord.   Zika has already been linked with the autoimmune disorder Guillain-Barre syndrome, which attacks peripheral nerves outside the brain and spinal cord, causing temporary […]

French scientists say they have proved a link between the Zika virus and a nerve syndrome called Guillain-Barre, suggesting countries hit by the Zika epidemic will see a rise in cases of the serious neurological condition.   Guillain-Barre (GBS) is a rare syndrome in which the body’s immune system attacks part of the nervous system. […]