University of Utah

Mystery Zika case in Utah was likely spread by virus victim to son through sweat or tears

New details are emerging about the mysterious Zika case in Utah where a son caring for his sick father became infected with the virus. The father's death in June was the first related to Zika in the continental United States. His son's infection was unusual because, unlike all other known adult cases, he had not traveled to a Zika-infected region or had sex with a partner who had done so.

Instead, he had remained at his father's side in the hospital.

In a case study published Wednesday in The New England Journal of Medicine, the medical team who cared for both patients said it's likely the younger man contracted the virus through his father's sweat or tears. The older man...