Number of confirmed swine flu cases could be “tip of iceberg”BMJ 2009; 338 doi: https://doi.org/10.1136/bmj.b2153 (Published 26 May 2009) Cite this as: BMJ 2009;338:b2153
- Adrian O’Dowd1,
- Fred Charatan2
Almost 13 000 people around the world have now been confirmed as having been infected with the A/H1N1 flu virus, but experts in the United States are warning that the actual figures there could be much higher.
As the BMJ went to press on 26 May the World Health Organization said that 12 954 cases of A/H1N1 flu had been confirmed in 46 countries and that 92 people had died from the virus.
Numbers of confirmed cases have continued to rise slowly in the United Kingdom, which now has 137.
In the US, however, which now has the greatest number of cases of any country at 6764, the Centers for Disease Control and Prevention warned that many more people than official figures show could be infected.
At the CDC’s most …