News & Perspective

"Fighting Zika is the most complex epidemic response CDC has taken on," Frieden says.

In addition, phase 2 trial of an adenovirus-based vaccine shows it to be safe and immunogenic though protection less than prolonged. 

In other developments, research teams describe viral levels in semen and thrombocytopenia as a complication.

In related developments, a pair of WHO updates flesh out the details for 22 infections reported by Saudi Arabia since late November.

Achievements include more diagnostic testing in kids and prevention during pregnancy.

Also, Korean researchers detailed transmission patterns in its 2015 outbreak, including a role for doctor shopping and ED visits in super-spreading events.

Also, New York's first 80 cases point to the usefulness of urine testing for diagnosis.

Of 9 recent cases detailed by the WHO, 4 involved contact with camels or drinking raw camel milk.

Findings from "minibrain" experiments raise new questions on how Zika infects developing fetal brain cells.

In another development, the WHO shared details of 6 Saudi cases reported earlier this month, including 2 involving contact with camels or raw camel milk.