Veterinary Record

Samples from the antrum and fundus of the stomachs of 457 pigs from 22 different herds were screened for the presence of ‘ Candidatus Helicobacter suis’ by pcr , and samples from the antrum and/or fundus of 222 of the stomachs were tested for urease activity. The prevalence of the infection was very low before weaning, increased rapidly after weaning and reached 90 per cent in the adult boars and sows. The agreement between the results obtained with the pcr test and the urease test was very good for some age groups and sampling sites, but poor for other age groups and sampling sites.

Blood samples from 426 healthy and sick cats in the UK were tested in a PCR assay for ‘Candidatus Mycoplasma haemominutum’ and Mycoplasma haemofelis (basonym Haemobartonella felis ). Seventy‐two of the cats (16·9 per cent) were positive for ‘Candidatus M haemominutum’ alone, six (1·4 per cent) were positive for M haemofelis alone and one (0·2 per cent) was positive for both. Logistic regression analysis indicated that older male cats were significantly more likely to be infected with ‘Candidatus M haemominutum’, but there was no significant association between it and any of the haematological variables measured. M haemofelis infection was uncommon in the anaemic cats sampled, and there were too few positive cases for multivariable analysis to be performed for M haemofelis ‐positive status.