* Ho Chi Minh City epicentre of Delta-driven outbreak
* Authorities tighten lockdown in city, no going out even for food
* Vietnam deploys military to help with food distribution
* Just 1.8% of people in Vietnam fully-vaccinated against COVID-19 (Updates with new cases and deaths, and aids from China and Poland)
HANOI, Aug 23 (Reuters) - Vietnam deployed soldiers on Monday to help enforce a strict COVID lockdown in Ho Chi Minh City, its biggest urban area and current epicentre of its worst coronavirus outbreak to date.
Vietnam implemented movement restrictions in Ho Chi Minh City in early July, but announced its harshest curbs last week as infections have continued to surge. Authorities have said enforcement of recent curbs has not been sufficiently strict.
After containing COVID-19 for much of last year, Vietnam has recorded 358,456 infections and at least 8,666 fatalities. Ho Chi Minh City has recorded over 180,000 infections - half the country's total - and 7,010 deaths, making up about 80% of the nation's fatalities, according to the health ministry.
Most of those cases have been recorded in Ho Chi Minh City and its surrounding industrial provinces, where the Delta variant of the virus has sent numbers soaring since late April.
The government said on Friday a tighter lockdown would begin on Monday, prohibiting people from leaving their homes, even for food, and said the military would step in to help.
The announcement, later amended so that people in some areas could still shop for food, was subsequently reverted to a total ban, triggering confusion and panic-buying at supermarkets in the city over the weekend.
Witnesses said soldiers were delivering food to residents of the city on Monday and images broadcast by state media showed armed soldiers manning checkpoints and checking documents.
Vietnam has over recent weeks sent 14,600 additional doctors and nurses to the city and its neighbouring provinces to support its overwhelmed medical system, the ministry said.
Patients with mild or no symptoms have been told to self isolate at home.
The government said on Friday it would send 130,000 tonnes of rice from state stockpiles to Ho Chi Minh City and 23 other cities and provinces. People in the city's Phu Nhuan and Go Vap districts told Reuters they had received packages of rice, meat, fish and vegetables from the military.
Vietnam received two shipments of 501,600 AstraZeneca COVID-19 vaccine doses from Poland and 200,000 Sinopharm doses donation from China on Monday, the government said.
In total, the country has secured over 23 million doses of COVID-19 vaccines but just 1.8% of its 98 million people have been fully vaccinated - one of the lowest rates in the region. (Writing by James Pearson; Editing by Ed Davies, Ana Nicolaci da Costa and Bernadette Baum)
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