New research attempting to calculate the risk of the Zika virus at the Olympics in Rio de Janeiro may reassure organizers and many of the more than 500,000 athletes and fans expected to travel to the epicenter of the epidemic.
Controversy about the global gathering in August has grown as more about the disease becomes known. The mosquito-borne virus can cause crippling birth defects and, in adults, has been linked to the neurological disorder Guillain-Barre.
The World Health Organization, acknowledging the concern, has called a meeting of its Zika experts to evaluate the transmission risk posed by . . .
