Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate...

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Introduction to Virology Nevada Health Sciences

Transcript of Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate...

Page 1: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to VirologyNevada Health Sciences

Page 2: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

A virus is an obligate intracellular parasite containing genetic material surrounded by protein

Virus particles can only be observed by an electron microscope

Page 3: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

The classification of viruses is based on the type of nucleic acid contained withinRNA viruses---also known as a retrovirusDNA viruses

Page 4: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

Recognizing the shape, size, and structure of different viruses is critical to the study of diseaseViruses have an inner core of nucleic acid

surrounded by protein coat known as an envelope

Most viruses range in sizes from 20 – 250 nanometers

Page 5: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

ReplicationViruses replicate within a host cell while

utilizing the host cell’s nucleic acids.

Page 6: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

Viral life cycle consists of six stages within the host cellAttachmentPenetrationUncoatingMultiplicationAssemblyRelease

Page 7: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

The cultivation of viruses is complex and includes three common methodsChicken egg cultureCell cultureAnimal inoculation

Page 8: Introduction to Virology Nevada Health Sciences. Introduction to Virology A virus is an obligate intracellular parasite containing genetic material surrounded.

Introduction to Virology

Viral Diseases-Examples InfluenzaRabies HIVHepatitis


Mammalian Diseases and Arachnids - taxonomy.be fileSarcoptes scabiei is an obligate parasite colonizing the skin and producing mange. Several Several other Acari, especially among

Mammalian Diseases and Arachnids - taxonomy.be fileSarcoptes scabiei is an obligate parasite colonizing the skin and producing mange. Several Several other Acari, especially among

Pigeon Louse Fly or Pigeon Fly, Pseudolychia …edis.ifas.ufl.edu/pdffiles/IN/IN58400.pdfsearch of a host. Hosts This fly is an obligate parasite of birds, especially feral and domestic

Pigeon Louse Fly or Pigeon Fly, Pseudolychia …edis.ifas.ufl.edu/pdffiles/IN/IN58400.pdfsearch of a host. Hosts This fly is an obligate parasite of birds, especially feral and domestic

Biology 331 Virology I Recall - non-cellular, obligate intracellular parasites.

Biology 331 Virology I Recall - non-cellular, obligate intracellular parasites.

Description of disease: Toxoplasmosis is a zoonotic …...Toxoplasma gondii is a zoonotic, obligate intracellular protozoan parasite that has the capacity to infect all warm-blooded

Description of disease: Toxoplasmosis is a zoonotic …...Toxoplasma gondii is a zoonotic, obligate intracellular protozoan parasite that has the capacity to infect all warm-blooded

Coexisting choroidal neovascularization and active … · 2017. 8. 29. · Necrotizing retinochoroiditis caused by an obligate intracellular parasite, Toxoplasma gondii, is a common

Coexisting choroidal neovascularization and active … · 2017. 8. 29. · Necrotizing retinochoroiditis caused by an obligate intracellular parasite, Toxoplasma gondii, is a common

Introduction to Animal Virology...Introduction to Animal Virology Viruses are obligate intracellular parasites which need a host cell in which to replicate. The mature viral particle

Introduction to Animal Virology...Introduction to Animal Virology Viruses are obligate intracellular parasites which need a host cell in which to replicate. The mature viral particle

Obligate Intracellular Organisms

Obligate Intracellular Organisms

EFFECTIVE CONTROL FOR NORTHERN FOWL MITES · FACTSHEET The northern fowl mite (Ornithonyssus sylviarum) is the most common external poultry obligate parasite (all stages occur on

EFFECTIVE CONTROL FOR NORTHERN FOWL MITES · FACTSHEET The northern fowl mite (Ornithonyssus sylviarum) is the most common external poultry obligate parasite (all stages occur on

Research Article Prevalence of Toxoplasma gondii and ...Background .Toxoplasma gondii is an obligate intracellular protozoan parasite and is a major opportunistic pathogen in immune

Research Article Prevalence of Toxoplasma gondii and ...Background .Toxoplasma gondii is an obligate intracellular protozoan parasite and is a major opportunistic pathogen in immune

Research Article Prevalence of Toxoplasma gondii and ...downloads.hindawi.com/journals/isrn/2013/123858.pdfBackground .Toxoplasma gondii is an obligate intracellular protozoan parasite

Research Article Prevalence of Toxoplasma gondii and ...downloads.hindawi.com/journals/isrn/2013/123858.pdfBackground .Toxoplasma gondii is an obligate intracellular protozoan parasite

Serum Metabolic Profiling of Oocyst-Induced Toxoplasma ...Toxoplasma gondii is an obligate intracellular parasite causing severe diseases in immunocompromised individuals and congenitally

Serum Metabolic Profiling of Oocyst-Induced Toxoplasma ...Toxoplasma gondii is an obligate intracellular parasite causing severe diseases in immunocompromised individuals and congenitally

TUBERCULOSIS - medicinebau.com fileMycobacteria Acid fast ,aerobic bacilli M TB obligate intracel parasite stains with Acid Fast so named AFB Fast in retaining of carbol fuchsin or

TUBERCULOSIS - medicinebau.com fileMycobacteria Acid fast ,aerobic bacilli M TB obligate intracel parasite stains with Acid Fast so named AFB Fast in retaining of carbol fuchsin or

Epidemiology of and diagnostic strategies for toxoplasmosis. · Infection with the protozoan parasite Toxoplasma gondii has a worldwide distribution. This obligate intracellular parasite

Epidemiology of and diagnostic strategies for toxoplasmosis. · Infection with the protozoan parasite Toxoplasma gondii has a worldwide distribution. This obligate intracellular parasite

Some definitions… Parasite: An organism that obtains food and shelter from another organism and derives all the benefits from this association. Obligate:

Some definitions… Parasite: An organism that obtains food and shelter from another organism and derives all the benefits from this association. Obligate:

Challenges to an obligate intracellular parasite Gain entry to host cell Survive host defenses Do not destroy cell while you need it Compete for host resources.

Challenges to an obligate intracellular parasite Gain entry to host cell Survive host defenses Do not destroy cell while you need it Compete for host resources.

Varroa Mites: Samples and ControlsVarroa destructor has no “free living” stage. It is totally dependent on its honey bee host. “Obligate” parasite The mite is blind and needs

Varroa Mites: Samples and ControlsVarroa destructor has no “free living” stage. It is totally dependent on its honey bee host. “Obligate” parasite The mite is blind and needs

Supporting Online Material for - UCLA EEB...2. Pathogen is a microparasite, i.e. a virus, bacterium, protozoan, or prion. 3. Pathogen is an obligate parasite (i.e. no environmental

Supporting Online Material for - UCLA EEB...2. Pathogen is a microparasite, i.e. a virus, bacterium, protozoan, or prion. 3. Pathogen is an obligate parasite (i.e. no environmental

PM 7/28 (2) Synchytrium endobioticum · Synchytrium endobioticum is an obligate parasite which does not produce hyphae but sporangia, which contain motile zoospores. Summer sporangia

PM 7/28 (2) Synchytrium endobioticum · Synchytrium endobioticum is an obligate parasite which does not produce hyphae but sporangia, which contain motile zoospores. Summer sporangia

VMP 930 Veterinary Parasitologya true parasite and lives only in the living flesh of warm-blooded animals. (Obligate myiasis) Only a small break in integument will permit infestation.

VMP 930 Veterinary Parasitologya true parasite and lives only in the living flesh of warm-blooded animals. (Obligate myiasis) Only a small break in integument will permit infestation.

Conversation Starters… 1. Describe the steps of viral replication. 2. What is an obligate parasite? 3. Where did HIV come from? 4. What is a retrovirus?

Conversation Starters… 1. Describe the steps of viral replication. 2. What is an obligate parasite? 3. Where did HIV come from? 4. What is a retrovirus?