Table 1 Investigations of the new variant of Chlamydia trachomatis outside Sweden*.

Country	No of examined samples	No of positive tests	Test systems used	Test system used for confirmation variant cases	No of new variant	Reference
Norway	409	49	(1) Roche Taqman 48 CT(2) In house dual target plasmid/ ompA gene PCR		2†	7
Ireland	8797	780	(1) Becton Dickinson ProbeTec	In‐house mutant specific plasmid PCR on 30 discrepant samples	0	9
		750	(2) Roche Taqman 48 CT
Netherlands	687	63	(1) Becton Dickinson ProbeTec	In‐house mutant specific plasmid PCR on 13 discrepant cases	0	8
		75	(2) Roche CT Amplicor
Denmark	>2600	ca 10%	(1) In‐house plasmid PCR(2) 16S RNA PCR	In‐house mutant specific plasmid PCR on discrepant cases	0	Jörgen Skov Jensen, personal communication
	150	100	(1) Becton Dickinson ProbeTec(2) In‐house plasmid PCR	Mutant specific plasmid PCR on discrepant cases, as in ref 2	1

*Time period for collection of samples differs, but all investigations are based on collection periods within the time range October 2006 to April 2007. The new variant has been reported from Finland in ESSTI Newsletter N.4, 2007 (http://essti.org/docs/ESSTI_Newsletter_issue_4.pdf), check up of this information with ESSTI showed it to be incorrect. Thus no confirmed cases of the new variant have been detected by May 2007 in Finland.

†More cases were found later (Amir Moghaddam, personal communication).