Gangs are an obstacle in battle against Zika
For health workers battling Zika across much of Central America, the immediate menace is not the mosquitoes that transmit the virus. It's the gangsters who control the streets, and sometimes threaten their lives.
Armed and well-organized street gangs known as maras exert near-total control over entire neighborhoods. In some cases, they deny access to health crews they suspect of working with police or a rival gang.
Source: Associated Press