In it, the authors question whether there is adequate evidence to consider this multiflagellated protozoon of significant importance in the context of the respiratory tract. Mu et al. [2] have also suggested that all the cases diagnosed as pulmonary L. blattarum infection reported in China were misdiagnosed. It is true that it is difficult for microscopists who are not familiar with the techniq...

A study on the prevalence of a common endoparasite in the wild population of the American cockroach was conducted in Penang Island using a trapping method at several sampling sites on the island. Gregarine blattarum was found in the digestive tract in 5 out of 115, or 4.35%, of the wild American cockroaches, Periplaneta americana, that were sampled. This is the first report in Malaysia of Grega...

We have read with interest the article published in your journal by Xue et al. [1] regarding a case report of bronchopul-monary infection by the multiflagellated protozoon Loph-omonas blattarum (LB). After observing carefully the images showed by authors, we think that there may be a misidentifi-cation of detached ciliated bronchial cells as true LB. The figures for the fresh samples may reflec...