These days, death is often at the door. Death by bullet, death by blood.

President Rodrigo Duterte’s “drug war” has left thousands dead at the hands of police, but it is also threatening lives in a different way.

Front-line advocates in this city in the central Philippines say the violent anti-drug campaign is pushing users ever further underground, fueling the spread of disease by stopping efforts to get them clean needles.

Those who work with injection drug users say they are being ­harassed, even arrested, while ­trying to make their rounds.