Around two hundred and fifty species of heterocerids are known to occur worldwide.

It occurs worldwide in otherwise healthy men and women of all ages.

The fungus is known to occur in 85 countries worldwide.

The illness occurs worldwide, but the incidence is higher in developing nations.

Each year, an estimated 100 million cases of dengue fever occur worldwide.

Most of the terrestrial species are tropical, although they occur worldwide.

They seem to occur worldwide, and most specimens have been brought up from depths of 200-3,000 m.

Figures similar to the European wild man occur worldwide from very early times.

Clinical signs are most commonly seen in pigs over 8 weeks of age, and the disease occurs worldwide.

Smaller workshops and conferences on particular fields occur worldwide throughout the year.