Abstract
Following the previous report to Eurosurveillance on 14 May 2009, the number of confirmed cases of new influenza A(H1N1) has continued to increase in the United Kingdom. By 31 May, UK surveillance activities had detected a total of 252 confirmed cases. Seventy (28%) were related to travel to the United States and Mexico. There is evidence of spread in households, schools and the community with increases in secondary (n=40), tertiary (n=125) and sporadic (n=13) cases. The new influenza A(H1N1) virus infection continues to cause a mild illness predominately affecting younger age-groups with a low rate of hospitalisation.
Highlights
Of the 252 confirmed cases, 118 (47%) are female (Figure 2)
Since the identification in late April of cases of acute respiratory infection due to a new influenza A (H1N1) virus in the United States and Mexico [1], the same strain has been detected in an increasing number of countries
Of the 252 cases, 28 reported a history of travel in the seven days before disease onset to Mexico and 42 to the United States
Summary
Epidemiology of new influenza A (H1N1) virus infection, United Kingdom, April – June 2009. Following the previous report to Eurosurveillance on 14 May 2009, the number of confirmed cases of new influenza A(H1N1) has continued to increase in the United Kingdom. During the period from 27 April to 31 May, a total of 252 confirmed cases have been detected (Figure 1). Cases were reported amongst travellers returning from Mexico, and from the United States. Since the identification in late April of cases of acute respiratory infection due to a new influenza A (H1N1) virus in the United States and Mexico [1], the same strain has been detected in an increasing number of countries. The first two confirmed cases of new influenza A(H1N1) virus infection in the United Kingdom (UK) were reported in travellers returning from Mexico to Scotland.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
