New Jersey health authorities are monitoring the West Nile virus activity in the area and are planning to conduct more mosquito control activities.
Governments are looking for ways to address the increasing number of deaths caused by pollution.
Some of the neighboring countries like Botswana and Zambia have issued a ban on South African meat exports.
Sanofi is under fire for offering anti-dengue vaccine Dengvaxia to the Philippines while it is still on clinical trial.