Case Of Human Infestation Research Articles

The East Indies reptile tick Amblyomma helvolum Koch, 1844 (Acari: Ixodidae), taxonomy, biology and new host records, including the first record of human infestation

Amblyomma helvolum is a widespread, generalist ectoparasite of reptiles in the oriental region, and has the potential to become highly invasive should it be inadvertently introduced outside its native range through the exotic pet trade. All life stages of A. helvolum are re-characterised morphologically and the first examples of nanism (dwarfism) and gynandromorphy (male and female tissue in one animal) for the species are described. Eighteen new hosts records are presented for A. helvolum, including the first case of human infestation. The taxonomy, distribution, ecology, phenology, disease associations, and invasion biology of the species are also discussed.

Molecular and MALDI-TOF MS identification of swallow bugs Cimex hirundinis (Heteroptera: Cimicidae) and endosymbionts in France

BackgroundThe Cimicidae are obligatory blood-feeding ectoparasites of medical and veterinary importance. We aim in the current study to assess the ability of MALDI-TOF MS to identify Cimex hirundinis swallow bugs collected in house martin nests.MethodsSwallow bugs were picked out from abandoned nests of house martin swallows and identified morphologically to the species level. The bugs were randomly selected, dissected and then subjected to MALDI-TOF MS and molecular analyses.ResultsA total of 65 adults and 50 nymphs were used in the attempt to determine whether this tool could identify the bug species and discriminate their developmental stages. Five adults and four nymphs of C. hirundinis specimens were molecularly identified to update our MS homemade arthropod database. BLAST analysis of COI gene sequences from these C. hirundinis revealed 98.66–99.12% identity with the corresponding sequences of C. hirundinis of the GenBank. The blind test against the database supplemented with MS reference spectra showed 100% (57/57) C. hirundinis adults and 100% (46/46) C. hirundinis nymphs were reliably identified and in agreement with morphological identification with logarithmic score values between 1.922 and 2.665. Ninety-nine percent of C. hirundinis specimens tested were positive for Wolbachia spp. The sequencing results revealed that they were identical to Wolbachia massiliensis, belonging to the new T-supergroup strain and previously isolated from C. hemipterus.ConclusionsWe report for the first time to our knowledge a case of human infestation by swallow bugs (C. hirundinis) in France. We also show the usefulness of MALDI-TOF MS in the rapid identification of C. hirundinis specimens and nymphs with minimal sample requirements. We phylogenetically characterized the novel Wolbachia strain (W. massiliensis) infecting C. hirundinis and compared it to other recognized Wolbachia clades.Graphical

INFECTION OF PEOPLE OF THE RUSSIAN FEDERATION WITH DIROFILARIASIS

Wide circulation of the causative agent of dirofilariasis in the natural environment and the lack of appropriate measures to identify and deworm infected animals – obligate definitive hosts (domestic dogs and cats) promotes infestation by the human helminth infections. The aim of the study is to analyze the incidence of dirofilariasis in people according to official statistics. The analysis of 52 surveillance maps collected for 2019, 2020 and official statistics on the incidence of parasitic diseases for 2019 was carried out. The analysis of the surveillance maps showed that dirofilariasis is most often registered in the south of Russia (the share of the Southern and Volga Federal Districts accounts for more than 50% of registered patients), the main group of patients with dirofilariasis falls on 30–39 year old people and older 60 years old or more (23.1%, respectively). The structure of patients with dirofilariasis is dominated by women (65.2%). Infestation is more often registered in urban residents (75%). Almost half of the removed dirofilaria, were localized in the head area (weight share of 44.2%). Among the removed helminths, females predominated (80.8%), of which 72.7% were immature. Cases of human infestation with dirofilariasis are registered throughout the Russian Federation, with the exception of the northern regions. Despite the increase in the proportion of Dirofilaria immitis, especially in the south of Russia, the disease caused by Dirofilaria repens and extremely rarely D. immitis are registered in people on the territory of the Russian Federation. It is possible that in this case there is a hypodiagnostic invasion of D. immitis.

富山県における2010年以降のマダニ人体刺症10例，特にタカサゴキララマダニ症例に注目して

富山県における2010年以降のマダニ人体刺症10例，特にタカサゴキララマダニ症例に注目して

The first case of human infestation with Linguatula serrata in Kermanshah province

Linguatula serrata is a cosmopolitan organism belonging to the Phylum Pentastomida. Humans may act as an intermediate (Halzoun syndrome) or accidental definitive host of this parasite, manifesting the nasopharyngeal or visceral form. Linguatulosis occurs accidentally in human by ingestion of raw or undercooked visceral tissues of sheep, goat, camel, and other herbivores. This is the first report of Halzoun syndrome in Kermanshah province. In this case report, a 34-year-old man, from Salas-o-babajani district infested with this parasite was presented. Clinical signs and symptoms included pricking sensation in throat, coughing, sneezing and nasal discharge, which started 2-3 hours after eating undercooked goat liver. An organism in about 8 mm length was isolated from his pharyngeal discharge. The sample was examined in the pparasitology llaboratory of Kermanshah school of medicine. The results of analysis showed that this organism was the nymph of L. The serrata had a mouth surrounded by four hooks and a segmented body with small hooks. The patient was treated using oral anti histamines and gargling and nasal washing with saline solution. So, it is recommended that physicians consider L. Serrata infestation in patients with complaints such as pharyngitis accompanied by pharyngeal pain, coughing, sneezing and vomiting.

Occurrence of Parabdella quadrioculata (Annelida: Hirudinida: Glossiphoniidae) in Japan, with a First Case of Human Infestation by the Leech

We present the first record of Parabdella quadrioculata (Annelida: Hirudinida: Glossiphoniidae) from Japan. Leeches were collected from the Japanese pond turtle Mauremys japonica and a Japanese man. Mauremys japonica is a new host for this leech. This report is the first case of human infestation by the glossiphoniid leech.

Emergence of Zoonotic Myiasis in Vom and Bukuru Metropolis, Jos South LGA, Plateau State, Nigeria

A study was carried out to establish the emergence of cutanous myiasis with its zoonotic implication in Vom andBukuru metropolis of Jos South Local Government Area of Plateau State. 6 individuals (3 males and 3 females)who were suspected to have boils on their skin were diagnosed to be 100% infested with the larvae ofCordylobia anthropophaga. Similarly, in an investigation of dogs, out of 510 dogs examined in EvangelicalChurch of West Africa and NVRI Veterinary clinics, 47(9.2%) dogs had larvae in their cutanous tissues. Of 300dogs from ECWA vet clinic 31 (10.3%) were positive, while 16 (7.6%) were positive from 210 dogs screened inNVRI vet clinic. All results were statistically significant at P< 0.05. In comparism, the larvae extracted fromhuman and dogs were all identified to be of Cordylobia anthropophaga. Of 184 Alsatian 13(7.1%) were positive,of 258 Mongrel 27(10.5%) were positive, 3(21.4%) among 14 Doberman were positive and of 54 Rottweiler4(7.4%) were positive. Out of the 47 positive cases, 31(66.0%) were female while 16 (34%) were males. Amongthe female positive cases Mongrel showed a prevalence of 18(58.1%). Infestation in July showed a highoccurrence of 22(46.8%). Secondary bacterial infection was encountered in two cases of human infestation.

Emergence of Zoonotic Myiasis in Vom and Bukuru Metropolis, Jos South LGA, Plateau State, Nigeria

A study was carried out to establish the emergence of cutanous myiasis with its zoonotic implication in Vom andBukuru metropolis of Jos South Local Government Area of Plateau State. 6 individuals (3 males and 3 females)who were suspected to have boils on their skin were diagnosed to be 100% infested with the larvae ofCordylobia anthropophaga. Similarly, in an investigation of dogs, out of 510 dogs examined in EvangelicalChurch of West Africa and NVRI Veterinary clinics, 47(9.2%) dogs had larvae in their cutanous tissues. Of 300dogs from ECWA vet clinic 31 (10.3%) were positive, while 16 (7.6%) were positive from 210 dogs screened inNVRI vet clinic. All results were statistically significant at P< 0.05. In comparism, the larvae extracted fromhuman and dogs were all identified to be of Cordylobia anthropophaga. Of 184 Alsatian 13(7.1%) were positive,of 258 Mongrel 27(10.5%) were positive, 3(21.4%) among 14 Doberman were positive and of 54 Rottweiler4(7.4%) were positive. Out of the 47 positive cases, 31(66.0%) were female while 16 (34%) were males. Amongthe female positive cases Mongrel showed a prevalence of 18(58.1%). Infestation in July showed a highoccurrence of 22(46.8%). Secondary bacterial infection was encountered in two cases of human infestation.

09 久留米市内の住宅地で発生したフタトゲチマダニによる人体寄生例とその疫学的調査

09 久留米市内の住宅地で発生したフタトゲチマダニによる人体寄生例とその疫学的調査

Fascioliasis in Developed Countries: A Review of Classic and Aberrant Forms of the Disease

Cases of human infestation by Fasciola hepatica are not uncommon in Spain and other European countries. We report our experience with 20 patients diagnosed from 1982 to 1991 and present a critical review of published cases from western countries. Because F. hepatica has a special tropism for the liver, abdominal pain, hepatomegaly, and constitutional symptoms are among the most common manifestations of acute-stage fascioliasis. However, in the chronic stage, biliary colic and cholangitis are the predominant manifestations. The clinical spectrum of fascioliasis is variable, and patients may present with extrahepatic abnormalities, such as pulmonary infiltrates, pleuropericarditis, meningitis, or lymphadenopathy. Therefore, a high index of suspicion is required to establish a correct diagnosis. Eosinophilia is the most frequent laboratory abnormality. The CT scan has become a useful technique in the diagnostic work-up. A definitive diagnosis may be established by the observation of parasite ova in the feces, but most cases may be diagnosed by serologic methods. Triclabendazole and bithionol are the most effective drugs against F. hepatica. The efficacy of praziquantel is controversial.

北海道におけるマダニ咬着 7 例

Including the first two cases of human infestation with ixodid ticks that were reported by Ogura and Takada (1925) in Hokkaido, a total of 10 cases have been reported until the present time. The author adds the other 7 cases of human infestation with females of Ixodes persulcatus Schulze : case 1,left scapula; case 2,left inguen; case 3,lower part of right nipple on breast; case 4,lower part of right occipital region; case 5,parietal region; case 6,inside of left forearm; case 7,left side of waist. Tick species found from these 17 cases were 12 Ixodes persulcatus, 3 I. ovatus, 1 I. nipponensis (?), 1 I. ricinus (?). Of these 17 cases, 2 cases were found in late May, 7 cases in June, 3 cases in July, 1 case in August and 2 cases in September; 2 cases were unknown of their month of occurrence.

タカサゴキララマダニなど 3 種アダニの人体寄生 4 例について

タカサゴキララマダニなど 3 種アダニの人体寄生 4 例について

A case of human infestation with Isospora belli in Egypt

A case of human infestation with Isospora belli in Egypt

Human infestation with Linguatula serrata: Report of a case

A case of human infestation with Linguatula serrata in a woman is described. The clinical picture of the case was very puzzling and the attack lasted for 15 days. Living nymphs were expelled.This is the first human case reported from Greece so far.

Two Cases of Human Infestation by Larvae ofLinguatula serrata

Two Cases of Human Infestation by Larvae of<i>Linguatula serrata</i>

Two Further Cases of Human Infestation withBertiella Studeri(Blanchard, 1891) Stiles and Hassall, 1902, with Some Observations on the Probable Synonymy of the Specimens Previously Recorded from Man

Two Further Cases of Human Infestation with<i>Bertiella Studeri</i>(Blanchard, 1891) Stiles and Hassall, 1902, with Some Observations on the Probable Synonymy of the Specimens Previously Recorded from Man

INCREASING HUMAN INCIDENCE OF BROAD TAPEWORM INFESTATION IN GREAT LAKES REGION

Since 1895, specimens of the adult broad tapeworm, Diphyllobothrium latum , obtained from human beings, have been sent to this laboratory for identification. The earliest cases were from the Upper Peninsula of Michigan, the Calumet region in particular, where there was a large Finnish population; and, as they were all reported as coming from adult Finns, it could not be definitely proved that they were not imported from the Baltic region, where the incidence of the fish tapeworm in man is very high (stated by Faber as from 10 to 20 per cent of the entire population). It was evident clinically that there must be numerous cases of human infestation in the large Finnish population of the copper and iron mining regions of the Upper Peninsula, and as the conditions were wholly favorable for the dissemination of the tapeworm eggs in sewage to the waters of Lake Superior and the smaller