Colombia has declared a nationwide health emergency after at least 34 people died of yellow fever, according to official figures.
Yellow fever is caused by a virus transmitted to humans by infected mosquitoes. It can be prevented by a vaccine…
Colombia has declared a nationwide health emergency after at least 34 people died of yellow fever, according to official figures.
Yellow fever is caused by a virus transmitted to humans by infected mosquitoes. It can be prevented by a vaccine…