Disease caused by virus|| Viral disease MCQ ||MCQ for lab technician and lab attendant

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Viruses are much smaller than cells. In fact, viruses are basically just capsules that contain genetic material. To reproduce, viruses invade cells in your body, hijacking the machinery that makes cells work. Host cells are often eventually destroyed during this process.

Viruses are responsible for causing many diseases, including:

AIDS
Common cold
Ebola
Genital herpes
Influenza
Measles
Chickenpox and shingles
Coronavirus disease 2019 (COVID-19)
Antibiotics designed for bacteria have no effect on viruses.

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15) diseases caused by bacteria

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7-Minute Biology Tricks | Diseases Caused by Virus (वायरस के कारण होने वाले रोग) | By Krati Ma’am

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Static GK- Diseases caused by different Microorganisms – Bacteria, Virus, Fungi, Protozoa – Static GK- Diseases caused by different Microorganisms – diseases caused by viruses, diseases caused by Bacteria,diseases caused by Fungi, Bacterial diseases list, diseases caused by Protozoa. The list of diseases and the microorganisms that cause the disease is as follows –
Diseases caused by Bacteria
 Cholera- Vibrio cholera
 Anthrax- Bacillus Anthraces
 Diphtheria -Corynebacterium diphtheria
 Leprosy – Mycobacterium leprae
 Botulism – Clostridium botulinum
 Syphilis – Treponema pallidum
 Tetanus – Clostridium tetani
 Trachoma -Chlamydia trachomatis
 Tuberculosis -Mycobacterium tuberculosis
 Typhoid fever – Salmonella typhi.
 Whooping cough-Bordetella pertussis
 Diseases caused by Virus
 AIDS-Human Immunodeficiency Virus (HIV)
 Influenza – Influenza virus
 Mumps- Mumps Virus
 Polio -Polio Virus
 Chicken Pox -Varicella zoster virus
 Measles-Measles Virus
 Dengue fever -Dengue Virus
 Chikungunya -Chikungunya virus.
 Rabies -Rabies virus
 SARS – SARS coronavirus
 Diseases caused by Fungi
 Athlete’s foot – caused by the mold Epidermophytonfloccosum
 Diseases caused by Protozoa
 Malaria –   Plasmodium vivax
 Amoebic dysentery – Entamoebahistolytica
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The video discusses the GK Topic of Human diseases caused by Microorganisms – Bacteria, Fungi, Virus and Protozoa. All types of questions asked in Competitive exams have been covered. There are tips to memorize the topic easily.

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A bacterial disease, any of a variety of illnesses caused by bacteria. Until the mid-20th century, bacterial pneumonia was probably the leading cause of death among the elderly. Improved sanitation, vaccines, and antibiotics have all decreased the mortality rates from bacterial infections, though antibiotic-resistant strains have caused a resurgence in some illnesses. In the early 21st century, tuberculosis, which is caused by Mycobacterium tuberculosis—several strains of which had developed resistance to one or more drugs widely used to treat the infection—was among the deadliest infectious diseases worldwide.

Bacteria cause disease by secreting or excreting toxins (as in botulism), by producing toxins internally, which are released when the bacteria disintegrate (as in typhoid), or by inducing sensitivity to their antigenic properties (as in tuberculosis). Other serious bacterial diseases include cholera, diphtheria, bacterial meningitis, tetanus, Lyme disease, gonorrhea, and syphilis.

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Ebola virus disease (EVD), also known as Ebola hemorrhagic fever (EHF) or simply Ebola, is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses.Signs and symptoms typically start between two days and three weeks after contracting the virus with a fever, sore throat, muscular pain, and headaches. Vomiting, diarrhea and rash usually follow, along with decreased function of the liver and kidneys. At this time, some people begin to bleed both internally and externally.The disease has a high risk of death, killing 25% to 90% of those infected, with an average of about 50%. This is often due to low blood pressure from fluid loss, and typically follows 6 to 16 days after symptoms appear.

The virus spreads through direct contact with body fluids, such as blood from infected humans or other animals. Spread may also occur from contact with items recently contaminated with bodily fluids.Spread of the disease through the air between primates, including humans, has not been documented in either laboratory or natural conditions. Semen or breast milk of a person after recovery from EVD may carry the virus for several weeks to months.Fruit bats are believed to be the normal carrier in nature, able to spread the virus without being affected by it.Other diseases such as malaria, cholera, typhoid fever, meningitis and other viral hemorrhagic fevers may resemble EVD. Blood samples are tested for viral RNA, viral antibodies or for the virus itself to confirm the diagnosis.

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Influenza virus

A group of RNA viruses of the Orthomyxoviridae family. Transmission is predominantly airborne, typically in winter. Serotypes A and B are virulent in humans and are the causative agents for the annual flu epidemic.

Capsid : Helical

Genitic structure : -ssRNA (8 segments)

Three pathogenic types
Influenzavirus A
Influenzavirus B
Influenzavirus C

Subtypes are differentiated by cell surface antigens hemagglutinin and neuraminidase (e.g., H1N1 is “swine flu”)
Hemagglutinin (H): promotes viral entry by binding to sialic acid residues
Neuraminidase (N): promotes the release of virion progeny from host cells by cleaving terminal sialic acid residues

High antigen variability through antigenic drift and antigenic shift
Two forms of vaccines against influenza viruses A and B: inactivated and live attenuated

Disease : Influenza : A highly contagious, viral infection that typically occurs during the winter months. Manifestations include sudden-onset high fever, headache, rhinorrhea, nonproductive cough, malaise, and myalgia.

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In this video we are providing Some information about DISEASE CAUSED BY VIRUS

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Diseases – Diseases Caused by Virus Part 3: In this lesson, Rohit Pathak explains about the different types of diseases which are caused by the virus. He has explained about the Virus & AIDS. This course is about how diseases are caused, what is virus, bacteria, fungi or protozoa and their treatment and symptoms etc.

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This videos covers what viruses are and how they cause disease; specifically, we consider the cause, symptoms and treatments of Measles, HIV and Tobacco Mosaic Virus (TMV).

We have also done a video communicable disease, where we consider how they spread, and how we can reduce that spread:

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The virus that causes COVID-19 is in a family of viruses called Coronaviridae. Antibiotics do not work against viruses.

Some people who become ill with COVID-19 can also develop a bacterial infection as a complication. In this case, antibiotics may be recommended by a health care provider.

There is currently no licensed medication to cure COVID-19. If you have symptoms, call your health care provider or COVID-19 hotline for assistance.
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