By PRIME SARMIENTO in Hong Kong | China Daily Global | Updated: 2021-02-05 10:25 Share CLOSE Philippine President Rodrigo Duterte gestures during his fourth State of the Nation address at the Philippine Congress in Quezon City, Metro Manila, Philippines, July 22, 2019. [Photo/Agencies] The Philippines is planning a mass inoculation drive by the end of this month to curb coronavirus infections and revive an economy reeling from its worst post-World War II slump. President Rodrigo Duterte said in a televised briefing on Monday that while the economy is "sinking deeper and deeper", the government is trying its "very best to keep (it) afloat".