Lesson summary bacterial diseases microorganisms that cause diseases are known as pathogens. Taken in whole, the study of human infectious disease caused by viruses and other. The number of diseases caused by viruses, is probably lesser than only the number of species of viruses. Gk human diseases caused by bacteria viruses protozoa fungi.
Ncert science textbooks class 612, wikipedia microbes or microorganisms microorganisms include bacteria, fungi, protozoa, some algae, viruses, viroids and also prions that are proteinacious infectious agents. There are many types of viruses that cause a wide variety of viral diseases. Human diseases caused by viruses, fungi and protists. Vaccines can help prevent you from getting many viral diseases. May 02, 2018 most human infections in the world today are either caused by viruses or bacteria.
Human diseases pdf download notes for ssc cgl 2017,upsc,nda. We report the investigation of illness in a patient in china infected with an ah7n9 virus with a novel polybasic amino acid sequence at its ha cleavage site, a change that corresponds with increased pathogenicity. Microbes or microorganisms diseases caused by microorganisms diseases caused by bacteria, viruses, protozoans and fungi. Characterized by a runny nose, cough and sore throat, although harmless the common cold virus is caused by more than 200 viruses. Viral diseases viral diseases are extremely widespread infections caused by viruses. Cureus pneumonia caused by three separate microorganisms. Chronic meningitis caused by listeria in a patient infected. This list is very important for one day exams and upsc exams. Remove all weeds since these may harbor both viruses and insects. Parasites live on or in other organisms and thrive to the detriment of their host. Jul, 2015 human body also harbors a lot of viruses, but most of them do not cause diseases.
Vaccination against poliomyelitis with live virus vaccines. In early 2009, four human cases of cowpox virus cutaneous infection in northern france, resulting from direct contact with infected pet rats rattus norvegicus, were studied. Diseases caused by virus in plants with control measures. More than 40 types may be spread through sexual contact and infect the anus and genitals.
But some types of genital hpv can cause cancer of the. Association between adverse clinical outcome in human disease. Twothirds of the patients with evd68 required hospitalization, highlighting the severity of illness. Indeed, many professional medical books are devoted exclusively to this topic.
Human immune system can generate antibodies against viruses, the antibody will recognize the virus and destroy it. List of diseases caused by bacteria and viruses in humans. Chronic meningitis caused by listeria in a patient infected with human immunodeficiency virus roger l. An hpv infection is caused by human papillomavirus, a dna virus from the papillomavirus family. There are more than 100 varieties of human papillomavirus hpv. Once mature the daughter viruses break the cell and spread elsewhere. Reduction of viral load following antiviral treatment correlated with improved outcome. Human infection with highly pathogenic avian influenza. It has another claim to fame as the first virus imaged with an electron microscope. Bacterial diseases bacteria are microscopic, singlecelled organisms bacte.
The severity of diseases caused by these pathogens varies from mild symptoms to decline of the infected plants, depending on the aggressiveness of the. Many different parasites can affect humans, and they can pass on diseases such as malaria and trichomoniasis. The effect of virus infections on the host organism and populations viral. Some bacteria destroy living cells and tissues of the infected organism directly, while some cause tissue damage when they provoke a response from the immune system. Human body also harbors a lot of viruses, but most of them do not cause diseases. Common colds are the most seen diseases caused by viruses.
There are obviously many other human diseases caused by viruses. Here we are sharing list of all diseases caused by various bacteria,protozoa and viruses. This report describes a previously healthy 29yearold man who. In patients with pneumocystis carinii pneumonia, cavitation is an uncommon manifestation of a common disease. Gk, general studies, optional notes for upsc, ias, banking, civil services. The following points highlight the four main diseases caused by virus in plants. A few can cause fatal disease and illness in animals and humans. Emergence of na arg292lys mutation in two patients who also received corticosteroid treatment led to treatment failure and a poor clinical outcome.
This chapter introduces various viral skin diseases, including hiv infection. When a cell is infected with a virus several effects may be seen. Common diseases of tomatoes part ii diseases caused by. Hpv infection is a viral infection that commonly causes skin or mucous membrane growths warts. Viral infection and human disease insights from minimotifs. A few notable examples that have garnered the attention of the public health community and the population at large include. Hiv is a virus that lives in human blood, sexual fluids, and breast milk. They are caused by some genetic abnormality or metabolic disorder or malfunctioning of an organ. For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Pvs preferentially infect differentiating squamous epithelium and in humans, almost every part of human skin can be infected. Jan 21, 2020 human disease in this topic we are going to figure out some serious diseases caused by various types of bacteria, viruses protozoa and fungus.
The emergence of antiviral resistance in ah7n9 viruses, especially in patients receiving corticosteroid therapy, is concerning, needs to be closely monitored. Pdf epidemiological, clinical, and prognostic differences. Long long ago, only two polyomaviruses were known to infect humans. However, in immunocompromised patients, especially those infected with human immunodeficiency virus hiv, pneumonia may be caused by multiple organisms simultaneously. Some types of hpv infection cause warts, and some can cause different types of cancer. This plant disease is caused by tobacco mosaic virus tmv. Caused by hepatitis e virus hev, a naked, positivestrand rna virus. Viruses exploit these motifs as a principal mechanism for hijacking cells and many motifs are necessary for the viral lifecycle. Human diseases pdf download notes for ssc cgl 2017,upsc,nda,cds.
The differential diagnosis of cavitary pulmonary lesions in individuals infected with human immunodeficiency virus hiv is broad, especially in patients with advanced disease. Harvey department of medicine, division of infectious diseases, wayne state university school of medicine, detroit receiving hospital. List human diseases caused by bacteria, virus, fungi, and protozoa. A glimpse into the world of human viruses max planck institute for. Get a printable copy pdf file of the complete article 116k, or click on a page image below to browse page by page. List of diseases in plants caused by viruses healthfully. Gastrointestinal viruses are shed in the stool during bowel movements. Jun 04, 2019 please use one of the following formats to cite this article in your essay, paper or report. However, some viruses may attack certain cells and multiply within them. Chemical control strategies that may be required are updated annually in the osu extension agents handbook of insect, plant disease and weed control circular e832. Viral infection viral infection symptoms medlineplus. Virus diseases cannot be diagnosed on the basis of symptoms alone. Please use one of the following formats to cite this article in your essay, paper or report.
It is known to occur in all tobacco growing countries of the. Communityacquired pneumonia cap is usually caused by a single microorganism. Facts, statistics, symptoms, causes, diagnosis, and. Define emerging disease and explain why emerging diseases are a threat to human health. Changes in sabin type ii oral vaccine virus after human passage. Cowpox virus transmission from pet rats to humans, france. Infections and infectious diseases whoeurope world health.
List human diseases caused by bacteria, virus, fungi, and. Some types can cause health problems including genital warts and cancers. Infection is associated with fecalcontaminated drinking water. Most human infections in the world today are either caused by viruses or bacteria. Hev enters the blood from the gastrointestinal tract, replicates in the liver, is released from hepatocytes into the bile, and is subsequently excreted in the feces. Bacterial and viral infections impact on human health. Cavitary pulmonary lesions in patients infected with human. This virus can be spread to another person in 48 hours. Aphids spread it, and they cause physical damage to the plant, which allows entry of the virus via wind, splashing or dripping sap. Managing viruses diseases there are no chemicals that cure a virusinfected plant nor any that protect plants from becoming infected. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This is an airborne infection and is transmitted through the nose and mouth. In india as well as in the world many people often search for different human diseases and their scientific name of micro germs. Bacteria are small single celled organisms and are amongst the most successful life forms on the planet.
Bacteria produce disease in one of two general ways. More than twothirds of human viruses can also infect nonhuman hosts. Human diseases caused by viruses pubmed central pmc. Viral diseases are extremely widespread infections caused by viruses, a type of microorganism. Human disease in this topic we are going to figure out some serious diseases caused by various types of bacteria, viruses protozoa and fungus. Hpv was the first known human tumour virus, associated with benign, epithelial proliferations or papillomas and there are now 120 different hpv types officially recognised with others pending classification bernard et. A virus is a micro organism and it is usually very difficult to kill. Sometimes the virus and human immune system can establish a balance.
Humandiseasescausedbyviruses human diseases caused by. Pet rats, originating from the same pet store, were shown to be infected by a unique virus strain. Human diseases caused by viruses by dr ananya mandal, md when a cell is infected with a virus several effects may be seen. This report describes a previously healthy 29yearold man who presented. List of human diseases caused by bacteria and viruses. List human diseases caused by bacteria, virus, fungi, and protozoa hello friends welcome to. Common viral diseases emergence of new viral diseases. Epidemiological, clinical, and prognostic differences between the diseases caused by mycobacterium kansasii and mycobacterium tuberculosis in patients infected with human immunodeficiency virus. There are antiviral medicines to treat some viral infections. The virus spreads through entry into breaks of cell walls caused by insects or other physical damage. Printer friendly version pdf icon pdf common human coronaviruses, including types 229e, nl63, oc43, and hku1, usually cause mild to moderate upperrespiratory tract illnesses, like the common cold. Human infection with highly pathogenic avian influenza ah7n9. Diseases associated with human papillomavirus infection. However when the human immune system is weak due to various reasons, the viruses can break the balance and cause problems, became so called opportunist pathogen.
Overview of enterovirus infections infectious diseases. Dec 18, 2018 there are obviously many other human diseases caused by viruses. By damaging your immune system, hiv interferes with your bodys ability to fight the organisms that cause disease. How do human diseases caused by bacteria and diseases caused. It weakens your immune system, so your body has a hard time fighting off common germs, viruses, fungi, and other invaders. Most people get infected with one or more of these viruses at some point in their lives. Acquired immunodeficiency syndrome aids is a chronic, potentially lifethreatening condition caused by the human immunodeficiency virus hiv. The most common type of viral disease is the common cold, which is caused by a viral infection of the upper respiratory tract nose and throat.