GENEVA, Switzerland, Oct. 10 (UPI) -- A U.N. agency said Friday it was examining nearly 150 people who had contact with three people killed by a mysterious illness in Johannesburg, South Africa.

ATHENS, Greece, July 4 (UPI) -- A farm worker's death from Crimean-Congo Hemorrhagic Fever from a tick bite in northern Greece put hospitals on alert Friday, Greek health officials said.

ISTANBUL, Turkey, May 20 (UPI) -- Istanbul, Turkey, hospital workers said hundreds of the city's residents have flocked to hospitals after a Crimean-Congo hemorrhagic fever scare.

WASHINGTON, Feb. 25 (UPI) -- Health officials reported an outbreak of yellow fever in Paraguay, with seven confirmed cases in San Pedro and four as yet unconfirmed cases in San Lorenzo.

LUANDA, Angola, Nov. 8 (UPI) -- An international delegation is investigating a mystery disease that has left four people dead in Angola.

KANANGA, Democratic Republic of Congo, Aug. 31 (UPI) -- More than 100 people have died of a hemorrhagic fever since June in the Democratic Republic of Congo, health officials said.

VORONEZH, Russia, Dec. 27 (UPI) --

NEW DELHI, Oct. 17 (UPI) -- Dengue fever in India has now infected more than 5,100 people, killing more than 100 in recent weeks and causing chaos in the nation's health system. The rapid spread of what's known as "bonecrushers' disease" is also producing financial disarray in a nat

ATLANTA, Oct. 16 (UPI) --

BELGRADE, Serbia, April 14 (UPI) --

WASHINGTON, Aug. 18 (UPI) --

KHARTOUM, Sudan, May 21 (UPI) --

DHAKA, Bangladesh, Jan. 25 (UPI) --

ALMATY, Kazakhstan, Jan. 15 (UPI) -- Kazak officials have declared a state of emergency in western Kazakhstan because of a hemorrhagic fever outbreak, local media reported Thursday.

JOHANNESBURG, South Africa, Dec. 31 (UPI) --