The development of symptoms, parasitic infection and immunity in human scabies

Parasitology ◽  
1944 ◽  
Vol 35 (4) ◽  
pp. 197-206 ◽  
Author(s):  
Kenneth Mellanby
Keyword(s):  
Adult Female ◽  
Parasitic Infection ◽  
Mite Population ◽  
Personal Contact ◽  
Parasite Rate ◽  
First Time ◽  
High Parasite ◽  
Antibody Function ◽  
Partial Immunity

1. Scabies is usually transmitted by intimate personal contact.2. The young, newly fertilized adult female Sarcoptes is the stage usually responsible for transmission.3. Patients with a high parasite rate (over 100 adult female mites) are much more likely to spread scabies than those with few parasites.4. The distribution of the parasites in clinical scabies gives no clue to the original sites of infection.5. When a volunteer is infected for the first time he gives no reaction for about a month. During this period he may be quite unaware that the parasites are burrowing in his cuticle.6. After a month the patient becomes sensitized, itching and other symptoms develop.7. In a first infection the mites increase in numbers far less rapidly than is theoretically possible. A parasite rate of about 25 may be reached in 50 days and of up to 500 in 100 days; after this the number of mites decreases rapidly.8. The second time an individual has scabies he itches at the sites of infection within 24 hr. His mite population seldom rises to a fraction of the height reached in his first infection.9. Reinfection of cured cases is much more difficult than infection for the first time.10. Sarcoptes causes antibody function in man. This causes a partial immunity.11. The mechanism of immunity is due to three reactions: (a) scratching by the host which removes the parasites mechanically; (b) oedema renders the cuticle unsuitable for colonization and causes the mites to vacate their burrows; (c) scratching produces sepsis which is fatal to Sarcoptes.12. The partial immunity obtained may account for fluctuations in the incidence of the disease.

The parasitology of human scabies (women and children)

Parasitology ◽  
1944 ◽  
Vol 35 (4) ◽  
pp. 207-208 ◽  
Author(s):  
W. C. Bartley ◽  
Kenneth Mellanby
Keyword(s):  
Adult Female ◽  
Parasitic Infection ◽  
Adult Males ◽  
Parasite Rate ◽  
Number Of Children ◽  
Adult Females ◽  
Women And Children

In a previous paper (Johnson & Mellanby, 1942) an account was given of the numbers ot adult female Sarcoptes and their distribution in 886 cases of scabies. These cases were all adult males and it was desired to complete the study by a similar analysis of the parasitic infection in women and children. The following is an account of the numbers and distribution of mites in 119 women and eighteen children. Owing to the small number of children these figures are only suggestive. As described in the previous paper the mites are first located with the help of a watchmaker's lens and the parasite is then extracted with a mounted needle. Only adult females are extracted. The number of parasites per case is called ‘the parasite rate’.

Cocaine Dependence Produce Psychiatric Symptoms - a Case Report

2009 ◽  
Vol 24 (S1) ◽  
pp. 1-1
Author(s):  
M. Stankovic ◽  
S. Vucetic-Arsic ◽  
S. Alcaz ◽  
J. Cvejic
Keyword(s):  
Clinical Features ◽  
Male Patient ◽  
Psychiatric Symptoms ◽  
Cocaine Dependence ◽  
Psychotic Symptoms ◽  
Personal Contact ◽  
Outpatient Unit ◽  
Special Hospital ◽  
First Time ◽  
The Brain

Aim:We want to present a polymorphic clinical features like: hallutinations, paranoid ideas, agitation and violence as a result of prolonged cocaine intranasal consumption.Methods:We exposed a 30-year old male patient with ICD-X diagnostic criteria for cocaine dependence (intranasal consumption) that treated in the outpatient unit of Special Hospital of Addicitons, Belgrade, Serbia from April to July 2008. We used the medical records, psychical examination, psychiatric interwievs, standard blood sampling and cocaine urine detections sample (positive).Results:Observations a specific and polymorphic clinical features with presence of psychotic symptoms after cocaine consumptions in our male patient, for the first time after 5 years of cocaine dependence: auditory hallucinations (two- voice speakers), paranoid persecution ideas and suspiciousness, agitation with appearance of vegetative symptomatology (palpitations, sweating, pupil dilatation), extremely violence behavior to other people, complete social reductions (“armed to the outside world”, refused any personal contact and isolated from friends and family, permanent outdoor checking). There was an intensive fear too and impaired judgment.Conclusions:Permanent cocaine consumption can result with produce a numerous of psychiatric symptoms and syndromes as our experience does. It is similar to the findings of other studies and papers reviewed. It is suppose that cocaine has numerous effects on important neurotransmitters in the brain, such as increase as well as the release of dopamine and it related with aggressiveness, hallucinations and other psychiatric symptoms.

Rediscovery of the genus Pseudotydeus (Acari: Tydeoidea), with description of the adult using digital imaging

2003 ◽  
Vol 34 (4) ◽  
pp. 373-379 ◽  
Author(s):  
XAVIER DUCARME ◽  
HENRI M. ANDRE
Keyword(s):  
New Species ◽  
Adult Female ◽  
Digital Imaging ◽  
Line Drawings ◽  
First Time ◽  
A New Species

AbstractAndre, H.M. & Ducarme, X.: Rediscovery of the genus Pseudotydeus (Acari: Tydeoidea), with description of the adult using digital imaging. Insect Syst. Evol. 34: 373-380. Copenhagen, December 2003. ISSN 1399-560X. This paper describes the adult female of the genus Pseudotydeus Baker & Delfinado 1974 and confirms that the genus belongs to the Ereynetidae. The description is based on a new species collected from a Belgian cave ("Nou-Maulin", Rochefort). For the first time, a mite is described with microscope photographs instead of traditional line drawings. The two methods are compared. A new typology is proposed for sensilli clusters and a key to the genera of the Ereynetinae is provided.

Some soil-inhabiting mites (Acari: Mesostigmata) from Kazakhstan, with description of a new species of Gaeolaelaps Evans & Till (Acari: Laelapidae)

Zootaxa ◽  
2020 ◽  
Vol 4819 (3) ◽  
pp. 473-498
Author(s):  
OMID JOHARCHI ◽  
AIGERIM K. ISSAKOVA ◽  
OLGA S. ASYAMOVA ◽  
MOHAMMADHASSAN ABBASI SARCHESHMEH ◽  
ANDREI V. TOLSTIKOV
Keyword(s):  
New Species ◽  
Adult Female ◽  
Morphological Characters ◽  
First Time ◽  
A New Species

This paper presents ten species of eight genera and four families (Ameroseiidae, Ascidae, Blattisociidae, Laelapidae) of soil-inhabiting mesostigmatic mites in Kazakhstan. Eight of them are species that are recorded for the first time in Kazakhstan: Ameroseius corbiculus (Sowerby, 1806), Antennoseius (Vitzthumia) oudemansi (Thor, 1930), Cosmolaelaps lutegiensis (Shcherbak, 1971), C. markewitschi (Pirianyk, 1959), Gaeolaelaps nolli (Karg, 1962), Laelaspis astronomicus (Koch, 1839), Lasioseius ometes (Oudemans, 1903), and Pseudoparasitus missouriensis (Ewing, 1909). In addition, Gaeolaelaps kanati Joharchi & Issakova sp. nov. is described from Kazakhstan, based on morphological characters of the adult female.

New Margarodid species (Homoptera: Coccoidea : Margarodidae : Monophlebinae) from New Guinea

1989 ◽  
Vol 3 (7) ◽  
pp. 877 ◽  
Author(s):  
S Bhatti ◽  
PJ Gullan
Keyword(s):  
New Species ◽  
Adult Female ◽  
New Guinea ◽  
New Genera ◽  
Genital Opening ◽  
Adult Females ◽  
First Instar ◽  
Two New Species ◽  
First Time ◽  
One New Species

Three new genera and 11 new species from New Guinea are described in the tribe Monophlebulini. Erropera, gen, nov., contains four new species: E. ablusa, E. papuensis, E, pilosa and E. sedlaceki; Modicicoccus, gen. nov., contains four new species: M. gagnei, M. kaindiensis, M. monticolus and M. rtewsteadi; and Peengea, gen. nov., contains one new species: P. affinis. Two new species of Mottophlehirlus Cockerell, M. enarotalicus and M. gressitti, are described. The adult females of all 11 new species and the first instar nymphs of E. sedlaceki and P. affinis are described. A marsupium associated with the genital opening of the adult female is reported for the first time in the tribe Monophlebulini.

Remarks on the deep-sea genus Pseudolamprops (Cumacea: Lampropidae)

Zootaxa ◽  
2012 ◽  
Vol 3542 (1) ◽  
pp. 69 ◽  
Author(s):  
DANIEL ROCCATAGLIATA ◽  
UTE MÜHLENHARDT-SIEGEL
Keyword(s):  
Adult Female ◽  
North Atlantic ◽  
Deep Sea ◽  
New Records ◽  
New Combination ◽  
The North ◽  
New Material ◽  
The North Atlantic ◽  
The Antarctic ◽  
First Time

Based on two specimens collected in the Antarctic deep-sea (4928 m) the adult female and male of the genusPseudolamprops Gamô, 1989 are described for the first time. A new combination is proposed, Pseudolamprops profundus(Reyss, 1978) comb. nov., and several new records from the North Atlantic and Antarctica are provided. The diagnosis of Pseudolamprops is revised on the account of the new material available.

Ostertagia trifurcata (Nematoda: Trichostrongylidae) in cattle in Canada

1970 ◽  
Vol 48 (5) ◽  
pp. 1143-1144
Author(s):  
J. Owen D. Slocombe
Keyword(s):  
North America ◽  
Adult Female ◽  
Marked Variation ◽  
History Of ◽  
First Time

Ostertagia trifurcata was found in a steer in Canada and now recorded for the first time as infecting cattle in North America. Adult female worms showed marked variation in the vulvar region and were shorter than previously recorded for the species in sheep. There was no history of the host either grazing or being housed in areas or adjoining areas previously used by sheep.

Arnold Johannes Wilhelm Sommerfeld 1868-1951

1952 ◽  
Vol 8 (21) ◽  
pp. 274-296 ◽  
Keyword(s):  
Transition Period ◽  
Medical Practitioner ◽  
Later Life ◽  
Theoretical Physics ◽  
Personal Contact ◽  
Scientific Success ◽  
Permanent Home ◽  
Written Word ◽  
First Time ◽  
East Prussia

Arnold Sommerfeld was one of the most distinguished representatives of the transition period between classical and modern theoretical physics. The work of his youth was still firmly anchored in the conceptions of the nineteenth century; but when in the first decennium of the century the flood of new discoveries, experimental and theoretical, broke the dams of tradition, he became a leader of the new movement, and in combining the two ways of thinking he exerted a powerful influence on the younger generation. This combination of a classical mind, to whom clarity of conception and mathematical rigour are essential, with the adventurous spirit of a pioneer, are the roots of his scientific success, while his exceptional gift of communicating his ideas by . spoken and written word made him a great teacher. I was not a pupil of Sommerfeld, but met him for the first time in later life. Yet from this moment our friendship was firmly established. The picture of his personality which I carry with me and shall try to describe in these pages is drawn on this background of personal contact. I have further at my disposal a charming autobiographic sketch, which he wrote in 1919 for the Academy of Vienna, with an appendix probably added in 1950, and several obituary articles, of which those written by Heisenberg and von Laue are the most remarkable.1 Arnold Johannes Wilhelm Sommerfeld was born in Königsberg, East Prussia, on 5 December 1868. His father, Dr Franz Sommerfeld, was a medical practitioner devoted to science and a passionate collector of natural objects like minerals, amber, shells, beetles, etc. Königsberg—now a Russian town with another name—was the capital and coronation city of the Prussian kings and had developed a specific atmosphere of erudition and culture. It was Immanuel Kant’s place of birth and permanent home.

scholarly journals Pentaneurella katterjokki Fittkau & Murray (Chironomidae, Tanypodinae): redescription and phylogenetic position

ZooKeys ◽  
2019 ◽  
Vol 833 ◽  
pp. 107-119
Author(s):  
Fabio Laurindo da Silva ◽  
Elisabeth Stur
Keyword(s):  
Adult Female ◽  
Adult Male ◽  
Phylogenetic Position ◽  
Monotypic Genus ◽  
Pupal Exuviae ◽  
Coloration Pattern ◽  
Key Features ◽  
First Time ◽  
Male Pupa

The monotypic genus Pentaneurella Fittkau & Murray was originally described based on larvae, pupal exuviae and pharate males. The latter prevented the observation of key features, such as wing dimensions, abdominal coloration pattern, and hypopygial apodemes (sternapodeme and phallapodeme), and the description of the adult male was considered incomplete by the authors. Herein, the adult female of Pentaneurellakatterjokki is described for the first time, and the adult male, pupa and larva are redescribed and figured based on specimens recently collected in Germany and Norway. We also discuss the phylogenetic position of Pentaneurella.

Sign in / Sign up

Export Citation Format

Share Document