Quezon City (Philippines), Oct 4 (EFE/EPA).- Around 3,000 hogs have been slaughtered in the Philippines' Metro Manila area in a bid to contain the outbreak of African swine fever that has so far led to the death of more than 20,000 pigs in the Southeast Asian country, a city official said on Friday. (Camera: ROLEX DELA PENA Editor: DISSARINTR TOVIKKAI).