CONFIRMED & SUSPECTED CASES
Mexico: 152 suspected deaths from swine flu - 20 confirmed cases
US: 50 confirmed cases
Canada: 6 confirmed cases
New Zealand - 3 confirmed cases
UK - 2 confirmed cases
Spain: 2 confirmed cases
Israel - 1 confirmed case
Countries with suspected cases: Brazil, Guatemala, Peru, Australia, and South Korea, and seven EU states
Students infected
In New Zealand, Health Minister Tony Ryall confirmed that at least three students who had travelled to Mexico were suffering from swine flu.
Israel's first patient with confirmed swine flu, a 26-year-old man who recently returned from Mexico, is said to be making a good recovery.
Fifty cases have been confirmed in the US and six in Canada.
Two swine flu cases have been confirmed in the UK and two in Spain.
The EU health commissioner said on Tuesday that patients were also under observation in Denmark, Sweden, Greece, the Czech Republic, Germany, Italy and the Irish Republic.
Tests are being carried out on individuals or groups in Brazil, Guatemala, Peru, Australia and South Korea.
A number of countries in Asia, Latin America and Europe have begun screening airport passengers for symptoms, while Germany's biggest tour operator has suspended trips to Mexico.
'Decline in cases'
In Mexico, swine flu has been confirmed in 20 of the 152 known deaths.
Health Minister Jose Angel Cordova said all of those who had died were aged between 20 and 50. Infections among young healthy adults are a characteristic of past pandemics.
He noted that the number of new cases reported by Mexico's largest government hospitals had declined during the past three days: from 141 on Saturday to 119 on Sunday and 110 on Monday.
In almost all swine flu cases outside Mexico, people have been only mildly ill and have made a full recovery.