rodents are well established at port areas and their ectoparasite can be vectors of many diseases. ships at seaport play an important role in spreading disease by transporting infected vectors. plague, murine typhus, salmonellosis, trichinosis, leptospirosis and rat bite fever are known to be spread by rats. in view of the seriousness of the problem present study was undertaken to assess the pr...

The blood-sucking mites Dermanyssus gallinae (“red mite”), Ornithonyssus sylviarum (“northern fowl and bursa (”tropical mite”) stand out for causing infestations in commercial poultry farms worldwide, resulting significant economic damage producers. In addition to changes production systems that include new concerns animal welfare, global climate change recent years has become a major challenge...

background: ectoparasites of mammalian hosts play an important role for transmission of diseases from the host res­ervoirs to human. the aim of this study was to determine the species composition and infestation parameters for para­sitic arthropods associated with rhombomys opimus. methods: ectoparasites of r. opimus were collected from seven endemic district of zcl in iran including shirvan an...

Neoseiulus californicus was first reported in 1954 in California where it was collected from lemon trees (de Moraes et al. 2004). The predatory mite is distributed all over the world, both in arid and humid areas of sub-tropical and temperate zones. It was collected in Texas (USA), Mexico, Brazil, Guatemala, Peru, Argentina, Chile, Cuba, Colombia, Japan, Taiwan (introduced), Portugal, Italy, Fr...

We herein report human dermatitis caused by the tropical fowl mite Ornithonyssus bursa (Berlese). The cases occurred in an apartment in a residential district of Porto Alegre City, State of Rio Grande do Sul, Brazil, where three members of the same family presented with pruritic lesions on the arms and legs. On inspecting the bathroom, several mites measuring approximately 1.0mm in length were ...

The most important house dust mites are Dermatophagoides pteronyssinus and in drier areas D. farinae. In subtropical and tropical regions the glycyphagid mite Blomia tropicalis is a major source of allergen, which co-exists with D. pteronyssinus. The group 1 and 2 allergens of Dermatophagoides mites are clearly major specificities and it is likely that these allergens could be the basis of new ...

cant effect on the seasonal variation, with a mean shift of 2 months that could be explained by the length of the biological cycle of the mites. The existence of a seasonal pattern for D. pteronyssinus -specific IgE is consistent with previous reports that show seasonal fluctuations in mite counts, or mite allergen concentrations. Mites are very sensitive to fluctuations in humidity and need mo...

Summary House dust mites are among the most important allergy triggers worldwide. While of genus Dermatophagoides occur almost worldwide, tropical mite Blomia tropicalis and storage only importance for certain areas or groups people. The allergens pteronyssinus Der p 1, 2, 23 with immunoglobulin E (IgE)-binding frequencies more than 70% high allergenic activity. Also 5, 7, 21, which have IgE-bi...