HONG KONG (AP) - Hong Kong will test its entire population of 7.5 million people for COVID-19 in March, the city’s leader said Tuesday, as it grapples with its worst outbreak driven by the omicron variant.

The population will be tested three times in March, Hong Kong Chief Executive Carrie Lam said.

She said testing capacity will be boosted to 1 million a day or more.

“Since we have a population of some 7 million people, testing will take about seven days,” she said.

Hong Kong has reported about 5,000 new daily infections since Feb. 15, with the cases threatening to overwhelm its health care system. Since the current surge began at the beginning of the year, the city has recorded nearly 54,000 cases and 145 deaths.

The order for citywide testing comes after mainland Chinese authorities dispatched epidemiologists, health workers and other medical resources last week to help contain the outbreak in the semi-autonomous Chinese city.

Hong Kong has largely aligned itself with mainland China’s “zero-COVID-19” policy, which aims to totally stamp out outbreaks, even as many other countries are shifting their approach to living with the virus.

Lockdowns of entire cities have been imposed in a number of areas of the mainland, but Lam said no such measure is currently being considered in Hong Kong because it is “not realistic.”

She also denied that the central Chinese government is giving instructions to Hong Kong on how to handle the epidemic.

The “zero-COVID-19” strategy means that Hong Kong authorities often take measures such as locking down residential estates for mass testing when positive cases are detected, imposing strict quarantine requirements on travelers and ordering the shuttering of businesses.