Nearly 200 people have been infected with dengue in the states of New York and New Jersey so far this year, according to data from the Centers for Disease Control and Prevention.

New York has reported 143 cases and New Jersey has reported 41.

Dengue transmission is typically common in tropical and subtropical areas of the world, according to the CDC.

Over 2,500 people have been infected in the U.S. so far this year, about five times higher than the same time last year. Puerto Rico currently makes up the bulk of those cases – with over 1,700 reported. The U.S. territory declared a public health emergency back in March.

this is related to collapse, as the world is getting warmer. In some non-tropical climates outbreaks are start to rise as in tropical climates.