Meagan Duhamel's stomach flu has ended any hopes of the Canadian figure skater and partner Eric Radford winning a third Four Continents pairs title.

Radford tweeted Friday evening that they wouldn't be able to compete in the free skate in Taipei, Taiwan, and would shift their focus to next month's world championships in Boston.

An ailing Duhamel batted through Thursday's short program, scoring 71.90 points with Radford to sit second to China's Wenjing Sui and Cong Han.

"It prevented us from having a really great skate which is what we were hoping for," said Radford, referring to Duhamel's illness.

Duhamel, a Lively, Ont., native attempted to gain some strength leading up to the free skate by getting extra rest  while Radford, who hails from Balmertown, Ont., took to the ice for a solo workout.

In 2013, Duhamel and Radford won gold at Four Continents for their first international pairs title and became the first Canadians to claim the title since Jamie Sale and David Pelletier in 2002.

Duhamel and Radford also prevailed at Four Continents a year ago in Seoul, South Korea, defeating China's Peng Cheng and Zhang Hao with a point total of 219.48.

Last month, the reigning world champions won their fifth Canadian pairs title, defeating Quebec's Julianne Seguin and Charlie Bilodeau in Halifax.