(n.) An insect belonging to the genus Pulex, of the order Aphaniptera. Fleas are destitute of wings, but have the power of leaping energetically. The bite is poisonous to most persons. The human flea (Pulex irritans), abundant in Europe, is rare in America, where the dog flea (P. canis) takes its place. See Aphaniptera, and Dog flea. See Illustration in Appendix.
Example Sentences:
(1) The combined immediate and delayed responses to fleas in the dog are as observed by other investigators in man and guinea pigs.
(2) Repellent effect of the Mannich bases (methoxyphenol derivatives) on Aedes aegypti mosquitoes and Xenopsylla cheopis fleas was revealed under laboratory and field conditions.
(3) Rats were caught, and they and their fleas were identified.
(4) Efficacy of polyvinyl chloride collars containing temephos [0,0'-(thiodi-4,1-phenylene) 0,0,0',0'-tetramethyl bis-(phosphorothioate)] was elevaluated in dogs and cats against the cat flea (Ctenocephalides felis).
(5) Thus, has been shown a leading role of transmission of plague microbe by fleas in the maintenance of natural nidality of this zoonosis.
(6) The results indicate that some cat-allergic patients have specific IgE both towards cat and cat flea but also that some of the patients with suspected cat allergy might have specific IgE towards the cat flea and not the cat.
(7) Over 60 forms of parasites were found out as follows: three species of blood parasites, 12 species of Coccidia, 8 species of cestodes, 12 species of nematodes, one species of Acanthocephalus, three species of chigger mites, 15 species of gamasid mites, 6 species of ixodid ticks, fleas and lice.
(8) Dissection of fleas gave, however, positive results.
(9) Hungry but previously "prepared" for winter fleas lived at a temperature from 0 to 2 degrees not more than 376 days.
(10) The 12 additional arthropod species recorded from the woodland mice consisted of 1 nidicolous beetle, Leptinus orientamericanus; 1 bot, Cuterebra fontinella; 3 fleas, Ctenophthalmus pseudagyrtes, Orchopeas leucopus and Peromyscopsylla scotti; 1 tick, Dermacentor variabilis; 2 mesostigmatid mites, Androlaelaps fahrenholzi and Ornithonyssus bacoti; 3 chiggers, Comatacarus americanus, Euschoengastia peromysci, and Leptotrombidium peromysci; and 1 undescribed pygmephorid mite of the genus Pygmephorus.
(11) He and bassist Flea wrote letters of support to the women, which have been given to them in prison.
(12) All these hosts carried a lower proportion of reproductive fleas than their monthly sample proportion.
(13) It was considered that Ctenocephalides canis could be of great public health significance in this area in view of the high population of the flea.
(14) Infection in humans or animals by the common tapeworm of dogs and cats (Dipylidium caninum) requires ingestion of the intermediate host, the dog or cat flea containing the larva (cysticercoids) of the agent.
(15) Rabbit fleas Spilopsyllus cuniculi (Dale) were present on both sexes of rabbit at all times of the year.
(16) The larval flea diet had a small effect on the subsequent cestode development and the adult fleas' reaction to it.
(17) Almost all the patients with HP who were studied show hypersensitivity to flea bites.
(18) However, if, after six days, the fleas were transferred from an environment of 18 degrees C to one at 24 degrees C or 30 degrees C, the rickettsial growth increased by two or three logs within one week.
(19) Following exposure, samples of flea eggs were processed for microscopic examination and seeded onto carpet swatches containing flea-rearing medium in order to assess egg hatch, and larval, pupal, and adult development.
(20) When the number of fleas was increased to 250 and 500 specimens the progeny decreased in number.
Louse
Definition:
(n.) Any one of numerous species of small, wingless, suctorial, parasitic insects belonging to a tribe (Pediculina), now usually regarded as degraded Hemiptera. To this group belong of the lice of man and other mammals; as, the head louse of man (Pediculus capitis), the body louse (P. vestimenti), and the crab louse (Phthirius pubis), and many others. See Crab louse, Dog louse, Cattle louse, etc., under Crab, Dog, etc.
(n.) Any one of numerous small mandibulate insects, mostly parasitic on birds, and feeding on the feathers. They are known as Mallophaga, or bird lice, though some occur on the hair of mammals. They are usually regarded as degraded Pseudoneuroptera. See Mallophaga.
(n.) Any one of the numerous species of aphids, or plant lice. See Aphid.
(n.) Any small crustacean parasitic on fishes. See Branchiura, and Ichthvophthira.
(v. t.) To clean from lice.
Example Sentences:
(1) The prevalence of head louse Pediculus capitis Deg.
(2) The bushbuck were infested with 8 ixodid tick species, 2 louse species and a louse-fly species.
(3) The louse (Menacanthus stramineus) and the lone star tick (Amblyomma americanum) were the only parasites recovered.
(4) The common duiker harboured 7 tick species and 2 louse species.
(5) The ultrastructure of the Malpighian tubes in human louse Pediculus humanus corporis has been studied.
(6) In one brief moment a soldier thoughtfully removes a louse from his girl’s army jacket before kissing her.
(7) The louse-fly, Lipoptena paradoxa, was recovered from some of the bushbuck from October to May.
(8) Some of the treated cows were identified as carriers of louse infestation (subgroups A1 and C1), while others were noncarriers (subgroups A2 and C2).
(9) Besides other factors for such a high prevalence, the lack of health education of family members may play a crucial role in transference and louse infestation.
(10) A prospective study of 120 louse-borne relapsing fever (LBRF) patient admitted to Mekele Regional Hospital, Tigray, Ethiopia from September to November 1991 was done.
(11) However, juvenile wild fish, which migrate from the rivers to the sea each spring, are simply not designed to cope with more than the odd louse.
(12) One hundred and sixty patients with louse-borne relapsing fever were treated with a combination therapy of procaine penicillin and tetracycline.
(13) Based on evidence of intercellular cohesion, as seen in the histologic results, the patients were placed into two subtypes, compact growth type and louse structure type.
(14) At the end of the trial the mean red blood cell and mean total blood content of one louse was evaluated at 0.157 microliters and 0.443 microliters respectively, using 51Cr, and 0.120 microliters and 0.350 microliters respectively, using 59Fe.
(15) New host records are given for two species of Acari, one of louse, and one of flea.
(16) This sucking louse is typically parasitic on domestic rats, which are murid rodents.
(17) To evaluate the efficacy and to determine the minimum effective dosage of four pediculicides against head louse infestation, as well as to select a safe, effective, practical, and cheap agent, 1,657 infested school children in 25 primary schools in Szu-Hu, Kou-Hu, and Ku-Keng Districts of Yunlin County were treated and 1,611 of them were examined.
(18) Three 2-(2-phenylethyl) chromone derivatives were isolated from the ethyl acetate soluble fraction of the alcoholic extract of Aquilaria sinensis (Lous.)
(19) Louse-borne relapsing fever (LBRF) is an acute febrile illness endemic Ethiopia.
(20) During recent archaeological excavations in Viking Greenland, specimens of the human flea, Pulex irritans L., and the body louse, Pediculus humanus humanus L., were recovered from several farmsteads.