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Also, the CDC's travel notice said local officials are scaling up flea control and have cancelled mass gatherings.

South Africa and Italy report more H5N8 outbreaks, and Taiwan confirms new H5N2 events.

The country's first poultry outbreak has been confirmed to be caused by H5N6.

In South Africa, H5N8 has been detected at 2 ostrich farms in the southwest.

The latest outbreak affects a farm housing almost 400,000 poultry.

Current viruses fall into 2 geographically separate clades.

TB resistant to at least 4 antibiotics is primarily spreading person to person in South Africa.

The preliminary genetic analysis suggest that some of the internal genes have changed, compared to earlier H5N6 samples from China and Hong Kong.

A pharmacist-driven program achieves an 18% reduction in antibiotic use.

The WHO said though Zika virus has circulated in Africa before, the effect of an importation from the Americas is unclear.