Singapore is pledging $18 million to fight an outbreak of dengue fever in the city-state.

Health officials are perplexed by the increased number of cases. Dengue fever has killed eight people so far this year. At least 60 new patients infected with the disease are being admitted to Singapore's hospitals every day.

Officials said Wednesday, that more people have been hit with the mosquito-borne virus so far this year, than in all of last year - and last year set a record with almost 10,000 cases.

The government also said that it has formed a panel of communicable diseases experts to investigate the disease and how it is spreading in Singapore.

Dengue causes severe fever, muscle and joint pain, and rashes.

Some information for this report provided by AP and AFP.