In addition, Germany notes its first case of sexual transmission, and Argentina reports its first local cases.
$25 million is available to help states and territories fight Zika virus.
Also, Chinese researchers noted more findings from infected fetal mice showing extensive damage in developing brains., and US funding efforts made some strides.
Study results show the virus crosses the placenta and extensively damages fetal brains, and the outbreak strain in the Americas appears worse than in Africa.
The new guidance offers clinicians a longer period for testing for Zika virus during the acute illness phase.
A paper-based test shows promise in animal trials and might work for blood, saliva, and urine.
In other developments, a transgenic mosquito project is in the works for Grand Cayman and Spain reported a travel-linked microcephaly case.
The findings are similar to earlier studies showing Wolbachia's ability to cut dengue transmission.
Also, a study found distinct temporal patterns between cases, GBS, and microcephaly.
Also, the first US Zika death was reported and local transmission was announced in St. Barthelemy.
