Any act aimed at undermining the one-China principle and splitting the country will only end in failure, a mainland spokeswoman said Monday after the World Health Organization's annual assembly rejected a Taiwan-related proposal.

The World Health Assembly declined to include a proposal raised by some WHO members about Taiwan's participation in the WHA in the meeting's official agenda this year.

Zhu Fenglian, a spokeswoman for the Taiwan Affairs Office of the State Council, noted facts have proved again that hyping up Taiwan-related questions at the WHA will never succeed.

The one-China policy is the consensus of the international community and brooks no challenge, she said.

Zhu said Taiwan's Democratic Progressive Party, which stubbornly adheres to a separatist stance, is to blame for the island's exclusion from the meeting.

"The mainland attaches great importance to the health and well-being of Taiwan compatriots," she said, adding the mainland has notified Taiwan about the COVID-19 situation about 400 times, including information about Taiwan people infected in the mainland.

According to incomplete statistics, in the past year 44 teams of medical experts from Taiwan participated in some technical activities organized by the WHO, Zhu said.

"The channels for Taiwan to obtain information and support are smooth and effective," she said.