Home

Diphtheria

Diphtheria: Causes, symptoms, and treatmen

  1. Diphtheria is an extremely contagious disease with similar symptoms to the common cold. Here, we explain more about diphtheria, including its history, symptoms, treatment, and prevention
  2. Diphtheria is a serious bacterial infection that affects the mucous membranes of the throat and nose. Call your doctor right away if you believe you have diphtheria
  3. Diphtheria can be treated with medications. But in advanced stages, diphtheria can damage your heart, kidneys and Even with treatment, diphtheria can be deadly, especially in children. Symptoms
  4. Diphtheria is a type of contagious disease triggered by the bacterium Corynebacterium diphtheria. It derives its name from the Greek term diphthera which means leather hide
  5. Diphtheria is an infectious disease caused by Corynebacterium diphtheriae, which is usually transmitted via respiratory droplets. The clinical features of dip
  6. Diphtheria is a potentially fatal, contagious disease that usually involves the nose, throat, and Like many other upper respiratory diseases, diphtheria is most likely to break out during the winter months
Toxins | Free Full-Text | pH-Triggered Conformational

Diphtheria: Causes, Symptoms, and Diagnosi

Diphtheria, acute infectious disease caused by the bacillus Corynebacterium diphtheriae and characterized by a primary lesion, usually in the upper respiratory tract.. Diphtheria is a disease caused by a bacteria. Symptoms and signs include fever, swollen lymph nodes, trouble swallowing, and coughing. Read about treatment, causes and prevention Diphtheria. Quite the same Wikipedia. Just better. Diphtheria. From Wikipedia, the free encyclopedia. Diphthera redirects here

Diphtheria is caused by the bacterium Corynebacterium diphtheriae. Symptoms include sore throat and fever. Get information about the vaccine, treatment, history and prognosis of diphtheria Diphtheria is a highly contagious and potentially fatal infection that can affect the nose and throat, and sometimes the skin. It's rare in the UK, but there's a small risk of catching it while travelling in some.. C diphtheria is responsible for both endemic and epidemic diseases, and it was first Diphtheria manifests as either an upper respiratory tract or cutaneous infection and is caused by the aerobic..

diphtheria: Определение diphtheria: 1. a serious infectious disease that causes fever and difficulty in breathing and swallowing 2. a. Узнать больше Diphtheria is an infectious disease caused by the bacterium Corynebacterium diphtheria, which primarily infects the throat and upper airways, and produces a toxin affecting other organs Diphtheria is a highly contagious and potentially life-threatening bacterial disease caused by Corynebacterium diphtheriae. There are two types of diphtheria: respiratory and cutaneous Diphtheria Definition Diphtheria is a potentially fatal, contagious disease that usually involves the nose, throat, and air passages but may also infect the skin Diphtheria is a highly-contagious disease caused by Corynebacterium diphtheriae, an aerobic Gram-positive bacterium. It is generally an upper respiratory tract illness characterized by sore throat, low-grade fever, and an adherent membrane (a pseudomembrane) on the tonsil(s), pharynx, and/or nose

Diphtheria is a bacterial infection that spreads easily and occurs quickly. It mainly affects the nose and throat. Children under 5 and adults over 60 years old are particularly at risk for contracting the infection Diphtheria is an acute disease caused by toxin-producing strains of Corynebacterium diphtheriae (in some cases also by Corynebacterium ulcerans) bacteria, that is known to colonise mucous membranes Diphtheria is a serious bacterial infection. You can catch it from a person who has the infection and coughs or sneezes. You can also get infected by coming in contact with an object, such as a toy, that.. Diphtheria - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the MSD Manuals - Medical Professional Version. Diphtheria antitoxin Antibiotics Other treatments See more of Diphtheria on Facebook. Diphtheria updated their cover photo

Diphtheria - Symptoms and causes - Mayo Clini

Diphtheria is a disease caused by bacteria Corynebacterium diphtheriae and Corynebacterium ulcerans. It can cause respiratory symptoms or non-respiratory forms that affect other parts of the body, including the skin Cutaneous diphtheria appears to be more contagious than the respiratory form of diphtheria and persists longer than C. diphtheriae infections of the tonsils or nose in a carrier state. Corynebacterium ulcerans is a commensal of wild and domestic animals Diphtheria (dif-THEER-ee-a) used to be a common cause of both illness and death for children in the United States. In the 1920s, the United States used to see as many as 200,000 cases a year. Thanks to diphtheria vaccines, that number has dropped by 99.9%. There are 4 vaccines that include protection against diphtheria

Diphtheria (pronounced diff-THEER-ee-uh) is an infectious disease caused by a bacterium called Corynebacterium diphtheriae.It can be treated by special drugs, or by antibiotics.There is a vaccine which can prevent diphtheria.. Diphtheria can cause serious problems, like: Inflammation of the heart, which can lead to death; Different forms of paralysis, by poisoning of nerve cell Diphtheria Meaning Diphtheria can be defined as a chronic infectious disease caused by bacteria which is mainly communicable in nature. Diphtheria causes irritation of the mucous membranes by framing a base layer in the throat, which makes an issue while gulping food and also during breathing Diphtheria is a very contagious infection that makes it difficult to breathe. In severe cases, it can cause heart and nerve damage

Diphtheria (dif-THEER-e-uh) is a serious bacterial infection that usually affects the mucous membranes of your nose and throat. Diphtheria is extremely rare in the United States and other developed countries, thanks to widespread vaccination against the disease. Diphtheria can be treated with medications diphtheria (countable and uncountable, plural diphtherias) A highly infectious disease of the upper respiratory tract characterised by a sore throat, fever, and difficulty breathing, its symptoms being due to a potent toxin excreted by the infecting agent Corynebacterium diphtheriae. Synonyms (repiratory tract infection) Diphtheria is an acute disease caused by toxin-producing strains of Corynebacterium diphtheriae (in some cases also by Corynebacterium ulcerans) bacteria, that is known to colonise mucous membranes. Following infection, after a usually short incubation period (2-5 days), the release of the cytotoxin may produce characteristic lesions on the. Diphtheria antitoxin is given as a shot into a muscle or through an IV (intravenous line). The infection is then treated with antibiotics, such as penicillin and erythromycin. You may need to stay in the hospital while getting the antitoxin What is diphtheria? Diphtheria is a contagious and potentially life-threatening bacterial infection caused by toxin-producing strains of Corynebacterium diphtheriae and Corynebacterium ulcerans.Diphtheria was a common cause of death in children up until the 1940s but has now almost disappeared in Australia due to immunisation

Togo, Robert J

Diphtheria : Causes, symptoms, diagnosis, remedies FactD

diphtheria (dĭfthēr`ēə), acute contagious disease caused by Corynebacterium diphtheriae (Klebs-Loffler bacillus) bacteria that have been infected by a bacteriophage. It begins as a soreness of the throat with fever. The bacteria lodge in the mucous membranes of the throat, producing virulent toxins toxin, poison produced by living organisms Diphtheria is a serious infectious disease, but it is one that is highly preventable through the use of vaccines. The diphtheria-tetanus toxoids-acellular pertussis, or (DTap) vaccine is a series of several shots, the first of which can be given to infants when they are six weeks old. The remaining shots are given on a set schedule throughout. Diphtheria is a rare respiratory disease caused by bacteria and the mucus membranes of the body. It begins with a gradual onset of a sore throat and low-grade fever and can involve the tonsils and nose. Diphtheria causes a gray-green to black, thick fiber-like covering in the back of the throat. Neck swelling is usually present in severe cases Diphtheria toxoid vaccine was introduced in the mid-1920s, and its use became universal by the late 1940s . The number of cases of diphtheria reported annually declined from 18,675 in 1945 to 3 in 1980

Diphtheria can cause complications that affect the nervous system (neurological complications). These can occur weeks after you first experience diphtheria symptoms. Paralysis of the diaphragm. One possible complication is your diaphragm being paralysed. The diaphragm is a thick dome-shaped muscle that separates your chest from your abdomen Diphtheria is a serious infection of the nose and throat caused by diphtheria bacteria. Diphtheria bacteria are spread through the air by people sneezing or coughing or by direct skin-to-skin contact. The disease can result in very severe breathing problems. It can also cause heart failure and paralysis. About 1 in 10 people who get diphtheria. Underscoring diphtheria's broad threat was the dramatic experience of Princess Alice, daughter of Queen Victoria, who succumbed to diphtheria in 1878 at age 35. Alice fell ill after 4 of her 7 children, and her husband, the Grand Duke of Hesse-Darmstadt, were stricken by the disease, although it was fatal in only their youngest child Diphtheria can be prevented by vaccinations. What is diphtheria? Diphtheria is a very contagious disease usually caused by the bacteria Corynebacterium diphtheriae. It can affect the nose, throat and tonsils, and sometimes the skin. Diphtheria can be life-threatening, but due to immunisations in Australia it has virtually disappeared

Introduction Diphtheria is a rare but serious infectious disease. The bacteria usually causes infection of the throat and nose but can also cause skin infections. While some cases may be mild, the bacteria can produce dangerous toxins that cause severe complications which can be life-threatening. Such complications include heart trouble, paralysis, and kidney failure Diphtheria is an extremely contagious disease with similar symptoms to the common cold. It is very rare in the developed world following an immunization programme, but there are still many cases.

A betegség cseppfertőzéssel terjed. A diphtheria a szívizomzat érintettsége miatti keringési elégtelenség, gége-diphtheriában fulladás által okozhat halált. Magyarországon a védőoltások bevezetése előtti időkben a diphtheria járványos volt, morbiditása elérte a 20 0%ooo-et is. A betegség letalitása 20% körüli volt What is diphtheria? Diphtheria is an acute bacterial disease that can infect the body in the tonsils, nose, or throat and/or the skin. While this was a common childhood disease in the 1930s, a vaccine against diphtheria has now made it very rare in the U.S. and other developing countries Diphtheria once was a major cause of illness and death among children. The United States recorded a high of 206,000 cases of diphtheria in 1921, resulting in 15,520 deaths (a case-fatality ratio of 7.5%). Diphtheria case fatality rates range from about 20% for those under age five and over age 40, to 5-10% for those aged 5-40 years Diphtheria is a contagious disease, spread by an infected person's coughing, sneezing or open wounds. Symptoms include a sore throat and breathing problems. Diphtheria can affect people of all ages but can be prevented with vaccination. Treatment includes antibiotics and diphtheria anti-toxin Corynebacterium diphtheriae is the leading causing agent of diphtheria. It is a non-motile, non-encapsulated, non-sporulating gram-positive rod-shaped bacterium with a high GC-content and occurs in four biovars: gravis, mitis, intermedius, and belfanti, based on colonial morphology and biochemical profiles

Diphtheria - Knowledge for medical students and physician

  1. Diphtheria and Tetanus Toxoids Adsorbed is a vaccine indicated for active immunization against diphtheria and tetanus. Diphtheria and Tetanus Toxoids Adsorbed is approved for use in children from 6 weeks through 6 years of age (prior to 7 th birthday).. Diphtheria and Tetanus Toxoids and Acellular Pertussis Vaccine (DTaP) or a DTaP-containing vaccine is recommended for immunization of infants.
  2. 白喉(Diphtheria,来源于希腊语 διφθερα (dipthera),意思是「隱藏的皮革」)是由被一種稱為 白喉棒狀桿菌 ( 英语 : Corynebacterium diphtheriae ) 的細菌 感染造成的 。 症狀可以從輕微到嚴重 ,且一般通常是於接觸到致病菌二到五天後開始出現症狀 。 剛開始出現的症狀通常進展得較和緩,伴隨有.
  3. What is corynebacterium diphtheriae? C. diphtheriae is a club-looking bacteria that causes diphtheria, an infection with a characteristic tough leathery membrane that forms in the pharynx
  4. 白喉(diphtheria)是由白喉杆菌所引起的一种急性呼吸道传染病,以发热,气憋,声音嘶哑,犬吠样咳嗽,咽、扁桃体及其周围组织出现白色伪膜为特征。严重者全身中毒症状明显,可并发心肌炎和周围神经麻痹

diphtheria (n.) infectious disease, formerly frequently fatal, 1857, from French diphthérie, coined 1855 by physician Pierre Bretonneau (1778-1862) from Greek diphthera prepared hide, leather, which is of unknown origin; the disease so called for the tough membrane that forms in the throat.. Bretonneau's earlier name for it was diphthérite (1821), which had been Englished as diphtheritis. Diphtheria is a contagious and potentially life-threatening infection caused by a toxin (poison) made by bacteria. Cases of diphtheria are rare in Australia due to the introduction of an effective vaccine, but a century ago diphtheria was the most common infectious cause of death. Outbreaks still occur in countries with low vaccination rates Diphtheria is an upper respiratory tract infection initially resulting in a sore throat and mild fever, but can progress to other more serious symptoms if not treated . It can also infect the skin when lesions are exposed to the bacteria Diphtheria Definition Diphtheria is a potentially fatal, contagious disease that usually involves the nose, throat, and air passages but may also infect the skin. Its most striking feature is the formation of a grayish membrane covering the tonsils and upper part of the throat

Diphtheria - symptoms, average, Definition, Description

  1. Diphtheria is an acute bacterial disease that usually affects the tonsils, throat, nose, and/or skin. The disease is passed from person to person by droplet transmission, usually by breathing in bacteria after an infected person has coughed, sneezed, or even laughed
  2. Diphtheria is an infectious disease caused by Corynebacterium diphtheriae, which is usually transmitted via respiratory droplets.The clinical features of diphtheria are caused by a toxin produced by C. diphtheriae after it colonizes the upper respiratory tract. Patients initially present with fever, malaise, and sore throat.Within a few days, a grayish white pseudomembrane develops over the.
  3. Diphtheria is caused by the bacterium Corynebacterium diphtheriae, a gram-positive bacillus.There are three biotypes of the bacterium (gravis, mitis, and intermedius) capable of producing diphtheria, though each biotype varies in the severity of disease it produces
  4. Diphtheria is a highly-contagious disease caused by Corynebacterium diphtheriae, an aerobic Gram-positive bacterium.It is generally an upper respiratory tract illness characterized by sore throat, low-grade fever, and an adherent membrane (a pseudomembrane) on the tonsil(s), pharynx, and/or nose.A milder form of diphtheria can be limited to the skin..

Ho Chi Minh City is the second place to have diphtheria case after the Central-Highlands Province of Dak Nong reported an outbreak of diphtheria. The Tropical Disease Hospital in HCMC has sent a team of physicians to Dak Nong to study the outbreak of diphtheria in the province with 15 suspects and six positive for the dangerous bacteria C. diphtheriae is a Gram-positive, aerobic, nonmotile, toxin-producing, rod-shaped bacteria belonging to the order Actinomycetales, which are typically found in soil, but also have pathogenic members such as streptomyces and mycobacteria.C. diphtheriae is best known for causing the disease Diphtheria in human beings, which results from production of Diphtheria toxin in conjunction with. What is diphtheria? Diphtheria is a highly contagious and potentially life-threatening bacterial disease caused by Corynebacterium diphtheriae. There are two types of diphtheria: respiratory and cutaneous. Respiratory diphtheria involves the nose, throat and tonsils, and cutaneous diphtheria involves the skin. Cutaneous diphtheria is discussed. Diphtheria is a serious and life-threatening infectious disease. It is very infectious and can be passed on easily between people. Even with full medical treatment, it causes death in up to 1 in 10 of those who get it. Diphtheria is dangerous because the bacteria which cause it produce a powerful toxin (poison)

diphtheria Definition, Causes, Symptoms, Prevention Britannic

Diphtheria toxin mechanism - Duration: 3:34. Shomu's Biology 57,166 views. 3:34. Coronavirus — How to Talk about It in English - Duration: 13:34. Speak Confident English Recommended for you Diphtheria is endemic in many areas of the world and still occurs sporadically in the US. Early intervention by administering antitoxin is key to preventing systemic manifestations of the disease, which can include respiratory and neurological symptoms, cardiovascular collapse, and death. Prompt. Diphtheria is caused by an exotoxin produced by Corynebacterium diphtheriae, and the organism is spread from human to human by respiratory droplets. Symptomatic respiratory carriage is common. Local infections of C diphtheriae can occur in the respiratory tract or skin. Symptoms may also occur at distant sites secondary to absorption and.

Diphtheria. While the vaccine does not prevent the spread of diphtheria, it gives excellent protection against serious symptoms. The vaccine helps the system defend itself against the toxin secreted by the diphtheria bacteria. Whooping cough. The whooping cough component is approx. 80% effective in optimal cases Diphtheria definition: Diphtheria is a dangerous infectious disease which causes fever and difficulty in... | Meaning, pronunciation, translations and example diphtheria - acute contagious infection caused by the bacterium Corynebacterium diphtheriae; marked by the formation of a false membrane in the throat and other air passages causing difficulty in breathing. contagion, contagious disease - any disease easily transmitted by contact

Diphtheria. Diphtheria is an infectious disease caused by the bacterium Corynebacterium diphtheria, which primarily infects the throat and upper airways, and produces a toxin affecting other organs.One type of diphtheria affects the throat and sometimes the tonsils. Another type causes ulcers on the skin; these are more common in the tropics (places where all twelve months have mean. Diphtheria is an acute infection caused by the bacteria Corynebacterium diphtheriae. Diphtheria spreads through respiratory droplets (such as from a cough or sneeze) of an infected person or someone who carries the bacteria but has no symptoms. The most common and visible symptom is a thick, gray coating on your throat and tonsils the diphtheria toxin then kills the tumor cells.発音を聞く 例文帳に追加. ジフテリア毒素によって腫瘍細胞を殺傷することができる。 - PDQ®がん用語辞書 英語 Die Bezeichnung Diphtherie (englisch diphtheria, französisch diphthérie) führte Pierre Fidèle Bretonneau (1778-1862) als diphtherite (Diphtheritis) in den medizinischen Sprachgebrauch ein. Es ist eine Wortbildung mit griechischem Ursprung (französischer Gräzismus), abgeleitet von διφθέρα, diphthéra für Lederrollenpaar und der Endung -itis für Entzündung - Diphtheria is a bacterial infection due to Corynebacterium diphtheriae, characterized by proliferation of the bacteria in the upper respiratory tract and systemic diffusion of the diphtheria toxin through the body. - The infection is spread by droplets (coughing, sneezing, speaking) from the upper respiratory tract of a patient or carrier

Diphtheria Immunisation Scheme, London, England, 1941 D3189.jpg 754 × 800; 53 KB Diphtheria is a Killer - Protect Your Child by Immunisation Art.IWMPST20145.jpg 544 × 790; 65 KB Diphtheria is Deadly Art.IWMPST14179.jpg 542 × 800; 54 K Diphtheria is a bacterial infection that causes a thick covering in the back of the throat, which can lead to difficulty breathing, heart failure, paralysis or death. In the past decade, fewer. Bạch hầu trong tiếng Anh diphtheria có nguồn gốc từ tiếng Hy Lạp là diphtherà có nghĩa là miếng da động vật do bệnh thường đặc trưng bằng một lớp màng giả (pseudomembrane) trong họng hầu hay trong mũi, trên da

Diphtheria Symptoms, Treatment, Transmission, Causes & Vaccin

  1. In faucial diphtheria, the most common type, the infection is limited mostly to the tonsillar region; most patients recover if properly treated with diphtheria antitoxin. In the most fatal form, nasopharyngeal diphtheria, the tonsillar infection spreads to the nose and throat structures, sometimes.
  2. The tetanus, diphtheria, and pertussis vaccines are given to children together as a combination vaccine called Tdap (tetanus, diphtheria, and acellular pertussis). Children should get a total of 5 doses of Tdap vaccines before they reach 6 years of age
  3. Diphtheria is a contagios deadly disease, there is a lot to know and to learn about it. Read this page to help you understand the history of diphtheria and how and who discovered it. How diphtheria got its name. Also you can find out when diphtheria was a major outbreak and some early cures that they did to treat diphtheria

Diphtheria — Wikipedia Republished // WIKI

Years ago, diphtheria was one of the leading causes of death among children. Today, diphtheria is rare in developed countries, primarily because of widespread vaccination. Fewer than five cases occur in the United States each year, but diphtheria bacteria still exist in the world and can cause outbreaks if vaccination is inadequate Find diphtheria stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day

DTP3 Immunization Coverage on the Rise - Our World

Diphtheria is a nationally notifiable disease. TREATMENT. Patients with respiratory diphtheria require hospitalization to monitor response to treatment and manage complications. Equine diphtheria antitoxin (DAT) is the mainstay of treatment and can be administered without waiting for laboratory confirmation Diphtheria is an infection caused by strains of bacteria called Corynebacterium diphtheriae that produces a toxin. Diphtheria spreads from person to person, usually through respiratory droplets, like coughing or sneezing. It can also spread by touching open sores or ulcers of someone with a diphtheria skin infection Diphtheria usually affects the tonsils, throat, nose, or skin. Like tetanus, it is caused by the toxin, or poison, of a bacterium, but it can spread from an infected person to the nose or throat of others. (Source: excerpt from Shots for Safety -- Age Page -- Health Information: NIA Diphtheria magyarul és diphtheria kiejtése. Diphtheria fordítása. Diphtheria jelentése. ANGOL-MAGYAR SZÓTÁ

Diphtheria Disease, Symptoms, Treatment, Vaccine & Transmissio

Diphtheria is a condition caused by the Corynebacterium diphtheriae bacterium. The infection can range from mild to severe. Symptoms begin two to five days after exposure, either by direct contact with infected individuals or contaminated objects, or by exposure to contaminated air diphtheria definition: Diphtheria is defined as an infectious disease, caused by the bacteria corynebacterium diphtheriae, with a high fever, weakness and difficult breathing and swallowing. (noun) An example of diphtheria is a condition you get when expo..

WHO | Diphtheria-Tetanus-Pertussis (whole cell)-HepatitisEnrollment Documents | Johns Hopkins Engineering InnovationIditarod 2016: Mushers and dogs embark on 975mile sled

Diphtheria - NH

Define diphtheria. diphtheria synonyms, diphtheria pronunciation, diphtheria translation, English dictionary definition of diphtheria. n. An acute infectious disease caused by the bacterium Corynebacterium diphtheriae, which infects mucous membranes of the throat, causing formation of a.. Diphtheria can cause serious inflammation of the throat. The bacteria release a toxin that leads to the formation of a thick greyish-white membrane over the back of the throat and in the most severe cases block the airway. Infection can be fatal. The bacteria that cause diphtheria can also invade skin injuries and wounds

The Jungle Book screenshotsClostridium perfringens - online presentation

Diphtheria was once a greatly feared illness in the United States. In the 1920s, there were between 100,000 and 200,000 cases of diphtheria each year with 13,000-15,000 deaths. Because of widespread immunization and better living conditions, diphtheria is now rare in the United States. Calf diphtheria is an infectious disease affecting the pharynx, larynx, and oral cavity. Fusobacterium necrophorum is part of the normal flora of the mouth, intestines, and genital tract of herbivores and omnivores Diphtheria is an 'urgent' notifiable condition that must be notified immediately to the department by medical practitioners and pathology services. Exclusion periods apply to both cases and contacts. Diphtheria is an acute bacterial infection caused by toxigenic strains of Corynebacterium diphtheriae

  • 1.9 tdi elektromos adagoló tuning.
  • Kutyapiszok felszedő gép.
  • Talajtakaró klemátisz.
  • Gta 5 graphics comparison.
  • Távozz tőlem sátán online.
  • Gyapjú sapka.
  • Fogatlan rajzolása.
  • C 160.
  • Esküvői meghívó szeged gogol utca.
  • Obszcén versek.
  • Macskakiállítás 2018 székesfehérvár.
  • Röntgensugárzás keletkezése.
  • Papadakis cizeron olympics.
  • Dr. tóth tamás bv. vezérőrnagy.
  • Id tech 3 source code.
  • Pintyfélék.
  • Mit kell tudnia egy 4 éves gyereknek.
  • Iphone 5 kamera probléma.
  • Granárium nagysáp bowling.
  • Balatonalmádi homokos strand.
  • Kihúzható páraelszívó fehér.
  • Cukornád termesztés magyarországon.
  • Toka plasztika szeged.
  • Maryland university.
  • Buddhista templom zalaszántó.
  • Amerika kapitány rajzfilm online.
  • Agora debrecen nyári tábor.
  • Wiki boa.
  • Pisztácia hízlal.
  • Drágakő csiszolás budapest.
  • Duran box.
  • Világutazó könyv.
  • Babaváró versek apáknak.
  • Balaton téli programok.
  • Hal torta.
  • Laphámrák szájban.
  • Hővezetési tényező mikor jó.
  • Word formázási feladatok doc.
  • Sajtos pite.
  • Nyakkendo szabasminta.
  • Gyermekbántalmazás történeti áttekintése.