Singapore as of now has witnessed 58,054 cases of coronavirus and 28 deaths related to it.
Singapore reported six new COVID-19 infections on Saturday, the lowest daily figure since March 10.
Among the eight imported cases, two of them -- a Singaporean and another permanent resident -- had returned to Singapore from India.
Several new virus clusters in foreign worker dormitories have come up, though they were cleared of the disease a few weeks ago.
PM Lee said due to the scale and complexity of Singapore's response to COVD-19, there have been inevitably some rough edges.
To date, about 1,500 employers have yet to log into HPB's swab registration system to schedule their workers for their rostered routine testing.
With 423 more COVID-19 patients discharged from hospitals or community isolation facilities on Monday, 54,587 have fully recovered from the infection.
More than 2,200 confirmed cases had been linked to the cluster and the Health ministry closed the cluster on July 18.
Singapore's National Day is celebrated on August 9 every year in commemoration of the country's independence from Malaysia in 1965.
Singapore on Wednesday reported three imported COVID-19 cases, including the woman.
The Ministry of Health (MoH) said Singapore has reported 334 new cases of coronavirus, with the majority among the foreign workers residing in dormitories.
Singapore is currently facing the city state's worst recession with the economy projected to shrink between 7 and 4% and is among only a handful of countries to have held an election during covid-19.
Eight of the new infections are community cases -- four Singaporean citizens and permanent residents (foreigners) and four foreigners holding work passes.
Kala Narayanasamy was among the five nurses given the award, the Ministry of Health announced on Tuesday.
Morning slots have been reserved for voters who are 65 years and older to minimise their interaction with younger voters and to allow them to vote ahead of others, the Elections Department said.