Table 2.

Details of patients super-infected with LES attending the Liverpool adult CF clinic (2003–2009)

	Date of joining service	Sample type	Date of conversion to LES	Sample type	Known social contacts with other LES patients	Details
1	September 1992	Sputum	September 2004	Sputum	Yes	Socialized with 2 LES patients
2	August 2005	Cough swab	July 2007	Sputum	Yes	Knew 2 LES patients from childhood, frequent socialization

LES, Liverpool epidemic strain