Morrison and Shorten back on the campaign trail

Scott Morrison and Bill Shorten are kicking their federal election campaigns back into gear after calling a Good Friday truce.

The prime minister and opposition leader will hit the hustings today, squeezing in one day of campaigning before downing tools again tomorrow for Easter Sunday.

Mr Morrison will start the day in Sydney, zeroing in on health with a $165 million promise to help clinical trials in the country and find a cure for cystic fibrosis.

Mr Shorten will focus on penalty rate cuts when he sets off from Melbourne on Saturday.

Clinical trials for medicines and treatment in remote, rural and remote Australia will get $100 million if the coalition wins the May 18 poll.

"Rural patients with cancer and other life-threatening illnesses often have it twice as hard, spending much of their life on the road to get the treatment they need and deserve," Mr Morrison said.

The coalition is also promising a $65 million for a dedicated cystic fibrosis specialist unit at Sydney's Westmead Health and Education Precinct.

Labor has calculated hospitality, retail and pharmacy workers will be hundreds of dollars worse off over the 10-day Easter period because of cuts to their penalty rates.

Mr Shorten is laying blame for the cuts at the feet of the prime minister, who voted in favour of reducing the rates eight times.

"Penalty rates are not a luxury - they help people put food on the table and petrol in the car," he said.

Overnight, the major parties both scrambled to take down sponsored Facebook ads, given their leaders had agreed to refrain from all advertising on Friday and Sunday.