The World Health Organisation chief warned Monday that swine flu could return with a vengeance despite Mexico's President Felipe Calderon insisting his country has contained the epidemic.
122462
Swine flu may return 'with 'a vengeance':
91223
Mexico confirms two more flu deaths, toll at 66
120371
Swine flu toll climbs to 88
166555
NHS worker becomes infected with swine flu
159856
Health experts fear outbreak of diseases
108712
Egypt reports two more cases of a/H1N1 flu
61794
Seven new cases of swine flu confirmed
60275
Probable cases of swine flu found in Washington state
85800
Parents urged not to panic about flu
47490
Swine flu could tip world into deflation
168870
Outbreak in Mexico may be smaller than feared
158442
Mexico investigates 10 more possible swine flu deaths
31414
Asia way short of vaccine to fight swine flu:
11027
Swine flu outbreak more widespread than realised
172293
Swine flu explained:
118828
Regular flu may delay spreading of swine flu
51761
Swine flu spreads to Taiwan, Kuwait, Iceland: