Hanoi, Sept. 23 -- Blood samples from pigs in several farms in the Philippine capity city of Manila tested have positive for African swine fever, according to the country's Department of Agriculture.

The announcement was made by the department on September 20, less than two weeks after it declared the first outbreak of the disease in the Philippines.

The Philippine Bureau of Animal Industry has found the African swine fever virus in blood samples from two areas in Quezon city, a part of Metro Manila, said the agriculture department's spokesman, Noel Reyes.

There are also other areas being monitored by the agriculture department, Reyes added.

Mayor of Quezon city Joy Belmonte said the virus was possibly transmitted from dead pigs found f...