Also, the WHO says overall cases and deaths are falling, but more nations are reporting variant viruses.
The tool has a diagnostic sensitivity of 97.8% and a diagnostic specificity of 98.9%, the authors say.
A report on two babies born in the Brownsville, Tex., area with congenital Zika infections showed that testing on their mothers during pregnancy and lab tests on babies don't always match up. Researchers from Driscoll Children's Hospital in Corpus Christi, Tex., where both babies were evaluated and treated, described their findings yesterday in Emerging Infectious Diseases.
World pandemic flu cases top 77,000
Though effective for other pathogens, the aging process didn't inactivate H5N1 avian flu virus in most raw cheese samples.
The increase was led by the Dominican Republic, which had almost 60,000 new cases.
Cases in the Americas now total almost 475,000, with the Dominican Republic accounting for most of last week's rise.
About two thirds of the 38,000 new cases reported last week were in the Dominican Republic.
Shared equipment, shared staff, and animal movements were among key findings for virus spread among different farms.