Croatians will choose a government to navigate the ongoing coronavirus pandemic in a general election on Sunday, after a campaign dominated by the health crisis.

The pandemic has put the country's tourism-dependent economy on course for a contraction of nearly 10 percent -- its worst fall in decades.

The ruling conservative HDZ party has been touting its relative success in containing Croatia's outbreak thus far, reporting roughly 100 deaths and 3,000 infections.

But a rise of cases in recent weeks, with dozens recorded daily, has renewed fears over the health situation and given the opposition fresh ammunition.

"Everyone is scared about what will happen in autumn," Vesna Trnokop, a 60-year-old economist from Zagreb, told AFP.

"The coronavirus has changed economies, not only in Croatia, everywhere, so we should change our ideas."

HDZ is set for a close race with the main centre-left opposition and also risks losing votes to a new right-wing movement gunning for third place.

Neither of the two main contenders -- Prime Minister Andrej Plenkovic's HDZ or the 'Restart' coalition led by the Social Democrats (SDP) -- are expected to win an outright majority in the 151-seat assembly, surveys show.

That leaves the populist 'Homeland Movement' of folk singer-turned-politician Miroslav Skoro, a potentially key coalition partner.

Opposition leader and prime minister candidate Davor Bernardic has accused the government of "consciously pushing Croatia into a risk" by deciding to hold the elections.

His party cancelled electoral rallies over health concerns while voters, who can cast ballots from 0500 GMT to 1700 GMT, have been asked to wear masks and bring their own pens.

- 'Political quackery' -

Plenkovic, meanwhile, is hoping the uncertain future will inspire voters to stick with HDZ, in power since 2016.

Now is the time for "serious choices and not for political quackery", said the former MEP, who has dismissed his rivals as ill-prepared.

"Croatia doesn't have time for experiments like Bernardic or Skoro."

Yet some Croatians are hungry for new faces in a country struggling with massive emigration driven by low salaries and corruption at home.

"A lot needs to be changed," said retired teacher Branka Tekavec.

"There is not enough focus on Croatians leaving for abroad, unemployment and poor salaries of young people."

The government's rivals are also seizing on recent graft scandals that have rocked the party, with Bernardic calling for a "new start" instead of HDZ's "path of corruption".

In his final address ahead of the vote, right-wing Skoro argued that only his new party "guarantees a change, while SDP and HDZ guarantee the continuity of bad governance".

The popular musician made his debut when he finished third in Croatia's December presidential election, inspiring him to form a new movement.

Analysts say HDZ could ultimately accept a tie-up with the singer, despite anger over his moves to break off a segment of their traditional voting base.

SDP, on the other hand, is unlikely to consider such an alliance given 57-year-old Skoro's nostalgia for Croatia's pro-Nazi past and accusations of sexism.

Some 3.8 million people are eligible to cast ballots, with first official results are due late Sunday.