Chinese authorities quarantined dozens more British students on Monday as the government in London tried to allay mounting fears over the swine flu crisis and the dangers facing pregnant women.
The worldwide death toll from the pandemic gathered pace with Ecuador announcing seven new fatalities and Australia reporting three new swine flu-related deaths.
Alarm bells rang louder in the Middle East as authorities in Israel warned a quarter of the population could contract A(H1N1), only hours after Egypt reported its first death.
And Russia, which had restricted the number of cases to single figures, warned the virus was spreading to all parts of Europe's largest country.
With China desperate to contain the virus, a total of 85 British students and teachers have been quarantined in a hotel in Beijing over swine flu fears while a further eight are being treated in hospital after displaying symptoms.
The new tally marks an increase over the 52 originally quarantined last week for a seven-day period at a Beijing hotel after they arrived for a study tour.
"We can confirm that a group of over 85 British schoolchildren and teachers are being held in quarantine in a hotel in Beijing," the British embassy in Beijing said in a statement that also indicated the figure could grow further.
China has responded aggressively to swine flu with temperature checks for arriving international passengers, and has imposed one-week quarantines on dozens of foreigners.