Wearing a face mask in public is mandatory in Vietnam and authorities are fining anyone who flouts the rules.
Those receiving the essential packages included self-employed waste pickers who scour the city's rubbish for recyclables and are paid for the amount they collect.
Experts believe children are more likely to be asymptotic carriers and could be inadvertently spreading the virus.
Adèle Belmont, who said she recovered from COVID-19, said she wanted to thank neighbours for their support.
Elsewhere in Europe, UK Prime Minister Boris Johnson was released from hospital on Sunday.