scholarly journals MEDICAL AND VETERINARY SIGNIFICANCE OF BLOOD-SUCKING MOSQUITOES (REVIEW)

2021 ◽  
pp. 469-473
Author(s):  
Serkova

This article presents an analysis of studies on harmful effects of blood-sucking mosquitoes (Diptera: Culicidae), which are one of the components of the gnat complex. Many individuals of this family are vectors of pathogens for a number of invasive and infectious diseases that are dangerous for animals and humans. The relevance of this study lies in the fact that today, climate warming and urbanization lead to expansion of the area of mosquitos, increase in their number, and as a result, the spread of diseases to new territories of Russia. Mosquito bites are accompanied by damage to the skin of a victim, a feeder, and introduction of toxic saliva which has a strong anticoagulant and hemolytic effect. Erythema, inflammation and itching are developed at the place of the insect bite. Multiple bites cause edema, and increased body temperature and local inflammation. It is difficult to estimate losses caused by mosquitoes to agriculture due to the fact that mosquitoes attack cattle together with other blood-sucking dipterans: horseflies, blackflies and sandflies. A massive attack of insects causes anxiety in cattle, disrupts normal grazing of livestock, and results in injuries caused by movements to protect themselves from insects, which leads to disruption of normal grazing and a decrease in their productivity.

Oecologia ◽  
2017 ◽  
Vol 185 (4) ◽  
pp. 573-582 ◽  
Author(s):  
Zheng Wang ◽  
Li Ma ◽  
Min Shao ◽  
Xiang Ji

Author(s):  
Zh.U. Katuova ◽  
Z.Z. Sayakova ◽  
A.Zh. Zhaymakhova ◽  
T.T. Koylybayev ◽  
R.A. Utemisova

The territory of the Aktobe region is unfavorable for some zoonotic infectious diseases, which are carried by blood-sucking arthropods. Feeding on the blood of obviously sick wild animals in natural foci, bloodsuckers can attack livestock and people and thereby contribute to the transfer of infectious agents to human settlements. Ixodid ticks are one of the many bloodsuckers capable of preserving and transmitting pathogens of especially dangerous infections to susceptible animals and humans. In the conditions of intensive development of transport communications on the territory of the Aktobe region, ixodids, as carriers of infectious agents, may present serious dangers. Despite many years of research, the tick fauna of the Aktobe region has not been completely studied. In 2018-2020, we conducted studies of ixodids in the north of the Aktobe region to clarify the current state of their fauna. Studies of ticks were carried out in inhibited areas of fi ve districts of the region in natural biotopes, with wild and agricultural animals according to the generally accepted method. As a result of studies in the north of the Aktobe region, the habitat of 5 species of ticks belonging to three genera were revealed: Dermacentor, Hyalomma, Rhipicephalus. Key words: fauna, ixodid ticks, vectors, range, Dermacentor, Hyalomma, Rhipicephalus


2009 ◽  
Vol 276 (1664) ◽  
pp. 1939-1948 ◽  
Author(s):  
Raymond B. Huey ◽  
Curtis A. Deutsch ◽  
Joshua J. Tewksbury ◽  
Laurie J. Vitt ◽  
Paul E. Hertz ◽  
...  

Biological impacts of climate warming are predicted to increase with latitude, paralleling increases in warming. However, the magnitude of impacts depends not only on the degree of warming but also on the number of species at risk, their physiological sensitivity to warming and their options for behavioural and physiological compensation. Lizards are useful for evaluating risks of warming because their thermal biology is well studied. We conducted macrophysiological analyses of diurnal lizards from diverse latitudes plus focal species analyses of Puerto Rican Anolis and Sphaerodactyus . Although tropical lowland lizards live in environments that are warm all year, macrophysiological analyses indicate that some tropical lineages (thermoconformers that live in forests) are active at low body temperature and are intolerant of warm temperatures. Focal species analyses show that some tropical forest lizards were already experiencing stressful body temperatures in summer when studied several decades ago. Simulations suggest that warming will not only further depress their physiological performance in summer, but will also enable warm-adapted, open-habitat competitors and predators to invade forests. Forest lizards are key components of tropical ecosystems, but appear vulnerable to the cascading physiological and ecological effects of climate warming, even though rates of tropical warming may be relatively low.


Epidemiology ◽  
2011 ◽  
Vol 22 ◽  
pp. S20
Author(s):  
Ling-Ya Huang ◽  
Yu-Chun Wang ◽  
Fung-Chang Sung

2021 ◽  
Vol 129 ◽  
pp. 02015
Author(s):  
Katerina Prihodova

Research background: Globalization has both positive and negative consequences. For more than a year, the whole world has been feeling very strongly about one of the negative consequences of globalization. And that is the rapid spread of infectious diseases. Within a few months of the first COVID-19 diseases, a pandemic occurred. The most common symptoms of this disease are fever, muscle aches, fatigue, loss of appetite and difficulty breathing. Therefore, it is essential to control body temperature reliably. If the process of temperature monitoring takes place in closed spaces, and simultaneously, the identification of a person is necessary, we propose a low-cost solution. This consists of using a mobile device in combination with a thermal camera for capturing people and subsequent evaluation using classification methods. Purpose of the article: The aim of this article is to create a model of a system for self-shooting. Follows recognition of elevated body temperature of persons and their identification to reduce the global impact of COVID-19 on the economy and society. Methods: A mobile device (tablet) combined with a thermal camera is used as a sensor. This is followed by face detection in both visible and thermal images. Methods of artificial intelligence (convolutional neural networks) are used for subsequent classifications of individual persons. Findings & Value added: The proposed model of self-sensing and subsequent identification of persons and their classification into groups (increased body temperature, normal temperature). In places where it is necessary to identify people, the system also detects elevated body temperature. This will help fight the spread of infectious diseases, which are characterized by fever.


2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Yoshio Osada ◽  
Tamotsu Kanazawa

Schistosomiasis is an important tropical disease affecting approximately 200 million people worldwide. Because of its chronicity and robust immunomodulatory activity, the effects of schistosomes on other diseases, such as allergies, autoimmunity, and infectious diseases, have been studied extensively in both epidemiological and experimental settings. In this paper, we summarize the beneficial and harmful effects of schistosomes. The importance of controlling schistosomiasis is also discussed.


2018 ◽  
Vol 4 (2) ◽  
pp. 171
Author(s):  
Widyalelisa Army

<p><strong><em>Abstract </em></strong><strong><em></em></strong></p><p><em>Infectious diseases have harmful effects if left unchecked. The limited number and working hours of health workers and the queue of patients makes handling and provision of first aid for patients to be not optimal. Then an expert system was developed which can help in diagnosing and allowing patients based on the facts experienced by the patient and cannot be directly with the doctor. In this study the method of forward chaining method to compile rules and based on certainty factor (CF) method is used to calculate the value of certainty so that the results are decided more clearly. The development phase of this method begins by gathering knowledge from experts or experts from various organizations and facts that build the knowledge base and provide CF values for each type of disease. Available information and problems based on the symptoms experienced by the patient. From the results of system testing, trials were conducted on 20 users, which resulted from the trial and compared with expert claims. This is 85% accurate with error 15%, showing the results of this infectious expert system can help doctors diagnose infectious diseases. based on the events experienced by patients and can provide first aid or early diagnosis by providing solutions to users.</em></p><p><strong><em>Keywords:</em></strong><em> Expert System, Health, Forward Chaining, Certainty Facto</em><em>r.</em></p><p><strong> </strong></p><p><strong> </strong></p><p><strong><em>Abstract </em></strong><strong><em></em></strong></p><p>Penyakit menular mempunyai efek yang berbahaya jika dibiarkan. Terbatasnya jumlah dan jam kerja tenaga kesehatan dan banyaknya antrian pasien membuat penanganan dan pemberian pertolongan pertama kepada pasien menjadi tidak optimal. Maka dibuat sistem pakar yang dapat membantu dalam mendiagnosis dan memberikan solusi kepada pasien berdasarkan gejala penyakit menular yang dialami pasien sehingga pasien tidak harus berkonsultasi langsung dengan dokter. Pada penelitian ini digunakan metode forward chaining untuk penyusunan rule dan ditambahkan metode certainty factor (CF) yang digunakan untuk menghitung nilai kepastian agar hasil yang diputuskan lebih jelas. Tahapan pembangunan metode ini dimulai dengan mengumpulkan pengetahuan dari tenaga ahli atau pakar berupa nama penyakit dan gejala penyakit kemudian membangun basis pengetahuan dan memberikan nilai CF pada setiap jenis penyakit. Sehingga didapatkan informasi dan solusi berdasarkan gejala-gejala yang dialami pasien. Dari hasil pengujian sistem yang dilakukan ujicoba kepada 20 orang user dengan tingkat error sebesar 15%, dimana hasil dari ujicoba tersebut dan dibandingkan dengan pendapat dokter diperoleh nilai akurasi dari sistem ini adalah 85% akurat, menunjukan bahwa hasil sistem pakar penyakit menular ini sudah dapat membantu dokter dalam mendiagnosis jenis penyakit menular berdasarkan gelaja-gejala yang dialami pasien dan dapat memberikan pertolongan pertama atau diagnosis dini dengan memberikan solusi kepada user.</p><strong>Kata Kunci :</strong> Sistem Pakar, Kesehatan, Forward Chaining, Certainty Factor


1998 ◽  
Vol 106 (2) ◽  
pp. 71-77 ◽  
Author(s):  
W Goettsch ◽  
J Garssen ◽  
W Slob ◽  
F R de Gruijl ◽  
H Van Loveren

2018 ◽  
pp. 158-161
Author(s):  
M. A. Saifullin ◽  
N. N. Zvereva

Infectious diseases accompanied by a rise in temperature is the most common reason for seeking medical help in childhood. A study of the frequency of antipyretic drugs showed that more than 95% of children with a temperature of 38.0 ° C or higher receive an antipyretic at least once. In this regard, the optimal approach to monitoring the body temperature in a febrile child remains an urgent issue in medicine. 


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