The United Nations top health official
has said the worldwide spread of swine flu is now unstoppable.
Doctor Margaret Chan was speaking at a global forum in Mexico
where the virus first took hold.
Andy Gallacher reports.
The head of the World Health Organization
was keen to promote Mexico as a safe destination
despite its suffering the largest number of fatality
since the outbreak began over two months ago.
Leaders and experts from across the world here in Cancun
to see what lessons can be learnt so far
but the advice is still the same.
The best way to avoid catching the virus is simple:
wash your hands and avoid coughing
and sneezing in public.