More than 600,000 people in Shanghai had received the COVID-19 vaccine as of Monday with no reports of serious adverse reactions so far.

The Shanghai Center for Disease Control and Prevention said that priority groups at a high risk include inspection and quarantine customs staff who handle imported cold-chain products, medical workers and those working at frontier ports.

Also included in the group are community workers, government officials, police, firefighters, and people whose work is related to logistics, senior care, public sanitation, public utilities, transportation, funerals and interment, and telecommunications.

A total of 602,000 people have been vaccinated at 17 temporary inoculation spots in 16 districts at venues such as exhibition halls and sports stadiums.

Pudong International Airport also has a vaccination site to serve front-line port staff.

Shanghai’s market authorities have screened cold-chain food staff at the city’s 87 public transfer testing venues and company cold-storage facilities for imported cold-chain food.

Files on staff at high-risk enterprises involving cold-storage food have been established, covering their identities, inoculations and nucleic acid testing records.

The city’s civil affairs authorities said vaccination on personnel at eight key positions at airports and quarantine spots has been conducted, where there is direct contact with people from overseas.