DOI  10.25732/PM.2020.43.87.001

 

A history of one discovery (Ixodes pavlovskyi Pomerantzev, 1946).

Communication 1. Ixodes pavlovskyi Pomerantzev, 1946: history of description and corroboration of the species validity

 

H.V. Dubinina 1, A.Y. Nikitin 2

1 Zoological Institute RAS, St.-Petersburg; e-mail: anadev@yandex.ru

2 Irkutsk Anti-Plague Research Institute of Siberia and Far East, Irkutsk; e-mail: nikitin_irk@mail.ru

 

Eighty years have passed since the death of Boris Ivanovich Pomerantsev (1903-1939), an outstanding Russian specialist on ixodid ticks. He died in the prime of his life, leaving much of his work unfinished. Boris I. Pomerantsev was an expert in morphology, systematics and fauna of ixodid ticks of the Palearctic. By the time of his death at the age of 36, he had written a revision of the family Ixodidae for the Fauna of the USSR series and a number of other works including a large chapter about the evolutionary trends within the Ixodoidea. Most of his manuscripts were published posthumously and gained worldwide recognition. A passionate ecologist, Pomerantsev participated in numerous expeditions to various places in the USSR such as Azerbaijan, Georgia, Armenia and Middle Asia. In 1939 he joined an expedition to the Far East, organised by E.N. Pavlovsky with the aim of studying natural infection foci of tickborne encephalitis. There Pomerantsev paid special attention to the ecology of tick vectors depending on their distribution. Working in remote tick-infested areas of the Ussuri taiga, Pomerantsev got infected with encephalitis. The disease proved fatal.

In this communication we recount the history of the discovery of Ixodes pavlovskyi Pomerantzev, 1946, described by Boris I. Pomerantsev based on a single female collected in Primorski Krai in 1932, corroborate the validity of this species based on the modern data, and discuss its intraspecific taxonomic structure and epidemiological significance.

 

Keywords: B.I. Pomerantzev, Russian scientist, ixodid ticks, Ixodes pavlovskyi, systematics, epidemiological significance

 

page 5-13

 

DOI  10.25732/PM.2020.80.79.002

 

 

Monitoring and evaluation of bovine contagious dermatosis control in Koumbia-Gaoual (Republic of Guinea)

 

Y. SIDIME* 1, A. O. S. DIALLO 1, M. KEYRA 1, B. DIALLO 2, D. BANGOURA 1, L. KABA 1, S. CAMARA 1, CE II ZOTOMY 1, B.S. BAH 1, J. LAMAH 1, М. Y. Boiro 3, T. Guzeeva 1, O. Konstantinov 3

 

1 Institut Supérieur des Sciences et de Médecine Vétérinaire (ISSMV) de Dalaba, BP 09 Dalaba, République de Guinée;

2 Direction nat ionale de l'élevage, BP 559 Conakry, République de Guinée

* Email: sidimeyoussouff@yahoo.fr Guzeevatm@yandex.ru

 

The investigation of lumpy skin disease, a rapidly spreading viral disease of cattle, has been studied. Prevalence of this disease at the herd and individual level varies and depends on the risk factors associated with this infection. The epizootological situation and appropriate treatment are described, the control measures are assessed. Recommendations, leading to the protection of the herd in the sub-prefecture of Koumbia are given.

The characteristic features noted for DNCB were skin nodules, discharge from the eyes and nose. The frequency of suspected disease was 6.41% in adult animals and 38.84% in young animals. The epidemiological situation was determined, and evaluation of the pathological effects of DNCB using intensive health indicators has been estimated at 8.67% of morbidity and mortality and 0% mortality.

Symptomatic treatment was carried out using oxytetracycline 10%, injectable phinylarithrite 200 mg, ivermectin 1%, betadine 10% and stress vitamin (1,530,000 IU).

The characteristic features noted for DNCB were skin nodules, discharge from the eyes and nose. The frequency of suspected disease was 6.41% in adult animals and 38.84% in young animals. The epidemiological situation was determined, and evaluation of the pathological effects of DNCB using intensive health indicators has been estimated at 8.67% of morbidity and mortality and 0% mortality. Symptomatic treatment was carried out using oxytetracycline 10%, injectable phynilarthrite 200 mg, ivermectine 1%, betadine 10% and stress vitamin (1,530,000 IU). The parameters influencing the epizootic process and their characteristics were evaluated. Suggestions were made for measures to prevent the revival and development of DNCB in the area.

 

Keywords: epidemiology, lumpy skin diseases, control measures, Koumbia-Gaoual.

 

page 14-19

 

DOI  10.25732/PM.2020.31.84.003

 

 

 

 Analysis of the detection of helminthprotozoal infestations among the population of the Astrakhan region (Based on materials from the center for hygiene and epidemiology in the Astrakhan region)

 

Arakelyan R. S. 1, Irdeeva V. A. 1, Shemetova S. A. 2, Abrosimova L. M. 2, Shendo G. L. 2

1 Astrakhan state medical University of the Ministry of health of Russia, Astrakhan, Russia

2 Center of hygiene and epidemiology in the Astrakhan region, Astrakhan, Russia

 

The purpose of this work is to analyze the detectability of helminth-protozoal invasias among the population of the Astrakhan region in 2019 based on the materials of the center for hygiene and epidemiology in the Astrakhan region. So, in 2019, the research of samples of biological material in the structure of all studies amounted to 25.9% (n=4624). Studies on parasitological indicators were conducted in both urban and rural areas. Individuals with suspected parasitic infestations accounted for 0.1% (n=528) of the total number of individuals surveyed.those who were in contact with the source of infection accounted for 3.9% (n=181). For prophylactic purposes, 84.7% (n=3915) were examined, of which 1.2% (n=47) were persons with parasitic infestation. Hemoscopic studies made up 8.1% (n=346), of which Plasmodium vivax pathogens were detected in one sample (0.3%). Serological studies of blood serum using the ELISA method in the structure of the biomaterial study were 0.7% (n=28).

 

Keywords: helminths, hemoscopic studies, enzyme immunoassay, coproovoscopic methods, malaria, protozoa, cysts.

 

page 20-27

 

DOI  10.25732/PM.2020.37.37.004

 

 

Analysis of resistance strains of the same species of yeasts isolated from soils with different anthropogenic load and clinical material

 

Akhapkina I. G. 1, Glushakova A. M. 1,2, Rodionova E. N. 1, Kachalkin A. V. 2,3

1 Mechnikov Research Institute of Vaccines and Sera, 105064, Moscow, Russia

2 Lomonosov Moscow State University, 119991, Moscow, Russia

3 All-Russian Collection of Microorganisms, G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms RAS, 142290 Pushchino, Moscow region, Russia.

 

Urbanozem of Moscow populated by a large number of resistant strains of those species of yeasts that is increasingly identified in clinical specimens as infectious agents of candidiasis, such as C. krusei, C. lusitaniae, C. glabrata, C. tropicalis, C. parapsilosis. The increase of anthropogenic load (soil zones of disposal of municipal waste) leads to intraspecific breeding of resistant strains, particularly C. albicans, C. tropicalis, C. lusitaniae, C. intermedia.

 

Keywords: yeasts; environment; anthropogenic load; Candida; candidiasis; resistance.

 

page 28-35

 

DOI  10.25732/PM.2020.29.73.005

 

About the history of insecticidal active substances.

Part 2. Synthetic organic compounds (chloroorganic, phosphorogenic, carbamino acid derivatives)

 

S. A. Roslavceva, professor, Scientific Research Disifectology Institute. Moscow 117246, Russian Federation

 

History of the use of substances and compounds as insecticides and larvicides for medical and agricultural disinsection. Part 2 describes synthetic organic compounds (organochlorine, organophosphosphate, derivatives carbamino acid), and their physico-chemical, insecticidal and toxicological characteristics.

 

 

Keywords: Insecticides, larvicides, organochlorine, organophosphates compounds, derivatives carbamino acids.

 

page 36 - 43