Table 1.

Bacterial strains.

Bacterial strain	Mucoid phenotype	Epidemic strain	Strain identification
Environmental	No	No	NCIMB 10848
Unique CF	No	No	4412061*
Unique CF mucoid	Yes	No	43903641*
Manchester	No	Yes	Jones et al [10]‡
Leeds Seacroft 1	No	Yes	4390416-2*
Leeds Seacroft 2	No	Yes	4390195*
Leeds Paediatric	No	Yes	Denton et al [12]*
Leeds Paediatric mucoid	Yes	Yes	Denton et al [12]*
Liverpool	No	Yes	McCallum et al [11]‡
Liverpool mucoid	Yes	Yes	McCallum et al [11]‡

*Stored strains obtained from the Department of Microbiology, Leeds General Infirmary originally isolated from people with cystic fibrosis identified through routine infection control surveillance to be epidemic or non-epidemic; ‡Strains obtained from Centre for Infectious Diseases, University of Edinburgh