SEOUL--South Korean voters wore masks and moved slowly between lines of tape at polling stations on Wednesday to elect lawmakers in the shadows of the spreading coronavirus.

The government resisted calls to postpone the parliamentary elections billed as a midterm referendum for President Moon Jae-in, who enters the final years of his term grappling with a historic public health crisis that is unleashing massive economic shock.

While South Korea’s electorate is deeply divided along ideological and generational lines and regional loyalties, recent surveys showed growing support for Moon and his liberal party, reflecting the public’s approval of an aggressive test-and-quarantine program so far credited for lower fatality rates compared to worst-hit areas in China, Europe and North America.

The long lines that snaked around public offices and schools followed record-high participation in early voting held on Friday and Saturday, seemed to defy expectations of low voter turnout in the middle of an active campaign to minimize social contact to slow infections.

Around 87,000 of South Korea’s 172,000 eligible voters overseas were also denied absentee voting after polling was ruled out in dozens of diplomatic offices worldwide as the pandemic grew.

The voting in South Korea draws contrast with an upended election cycle in the United States, where some states pushed back presidential primaries or switched to voting by mail.

To hold the parliamentary elections as scheduled, South Korean election officials and health authorities drew up a deliberate set of preventive measures to reduce risks of the virus being transmitted.

Duct tape or stickers marked a meter of social-distancing space from nearby streets to ballot booths. Masked poll workers checked temperatures of arrivals and whisked anyone with a fever or not wearing a mask to separate areas to vote, sanitizing the facilities after they do. Voters who passed the fever screening got sanitizing gel and disposable plastic gloves before entering booths to cast their ballots.

The government also mapped out a voting process for citizens quarantined at their homes, a number that ballooned after the country began enforcing two-week quarantines on all arrivals from overseas on April 1.

Officials texted eligible voters in self-quarantine before the vote and about 13,000 affirmed they wanted to participate. Those without fever or respiratory symptoms can temporarily leave their homes from 5:20 to 7 p.m. so they could cast their ballots after 6 p.m., when polling stations close for other voters.

Quarantined voters will be escorted or monitored through tracking apps and must maintain a 2-meter distance at polling places, while workers fully dressed in protective suits will disinfect booths after each of them vote.

Hospitalized virus patients were able to vote by mail if they had applied. Around 400 mildly ill patients participated in early voting.

South Korea has confirmed more than 10,500 infections and 225 deaths from COVID-19 with new cases declining in recent weeks. But there’s concern about rising infections in the densely populated Seoul metropolitan area and worries that crowds at parks and on mass transportation may indicate a relaxing of social distancing.

“Please do exercise your valuable rights by voting, but also refrain from other gatherings or activities that involve multiple people in confined spaces,” Health Ministry official Yoon Tae-ho said.

South Korea is just three years removed from mass protests that led to the ouster of Moon’s corrupt predecessor, but public displays of its dynamic democracy were muted this year by the virus. Candidates, wearing masks and gloves, avoided large rallies and handshakes. Things were more heated on the internet, which overflowed with bitter exchanges between supporters of Moon and his conservative opponents, who accuse the government of economic and foreign policy failures and botching the financial response to the epidemic.

Before the virus began absorbing public attention, Moon saw his support falter over a decaying job market, corruption scandals surrounding key political allies and an ambitious but fragile diplomacy with rival North Korea that’s falling apart.

Moon held three summits with North Korean leader Kim Jong Un in 2018, but the North in recent months severed virtually all cooperation with the South amid a stalemate in larger nuclear negotiations with the United States. The North has also been dialing up weapons tests and fired a barrage of missiles into the sea on Tuesday.

A ruling party victory will likely embolden Moon to drive his key domestic and foreign policies, including resuming inter-Korean cooperation and inducing U.S.-North Korea talks, said Duyeon Kim, a senior adviser at the Brussels-based International Crisis Group.

“If the opposition wins, Moon will likely become a lame duck, and party politics will quickly pivot to preparing for the 2022 presidential elections,” she said.