| parasite populations in the brown rat rattus norvegicus from doha, qatar between years: the effect of host age, sex and density. | a total of 179 urban rats were sampled in the city of doha in qatar across the winter seasons (february-april) of 2002 and 2003. only two parasites were identified, with overall prevalences of 35.8% and 41.3% for the cestode hymenolepis diminuta and the flea xenopsylla astia respectively. the prevalence of h. diminuta was markedly influenced by both year of study and host age, being higher in 2003 and amongst older rats. the abundance of infection of h. diminuta was influenced by the year of stu ... | 2005 | 15946389 |
| monospecific helminth and arthropod infections in an urban population of brown rats from doha, qatar. | parasitic infections were studied for the first time in an urban population of brown rats (rattus norvegicus) from doha. only one species of helminth was found, the cestode hymenolepis diminuta, and one ectoparasite, the flea xenopsylla astia, from a sample size of 136 rats (52 males and 84 females). the prevalence of h. diminuta was 17.6%, increasing with host age but not in relation to host sex nor season of capture. host age was a key factor in influencing abundance of infection, although the ... | 2001 | 11818046 |