Australia's largest airline Qantas said on Monday it is not yet screening passengers for potentially deadly swine flu.

The federal government's crisis health committee has met on Monday to decide if new steps, such as screening incoming overseas passengers at airports, should be introduced to manage a potential outbreak of the virus in Australia.

"We will be working closely with Australian and international authorities to monitor the situation," a spokesman told reporters, adding that all of its services have been operating as normal, pending further advice from health authorities.

Virgin Blue has been awaiting government advice before implementing swine flu prevention measures.

"Like all airlines, Virgin Blue will take advice from the Australian federal government regarding any recommendations and comply with all specific requirements," a spokeswoman said.

The World Health Organization (WHO) has warned an outbreak of swine flu in Mexico has spread to other countries.

The number of suspected swine flu cases there has risen to 1,614, including 103 deaths, Mexico has announced early Monday.

A New Zealand school group which returned from Mexico on Saturday may also have contracted the virus, but there are no known cases of swine flu in Australia yet.