2. Electron Microscopy - INAYA Medical College
... indicate active disease. • However, many viruses often produce clinical disease before the appearance of antibodies such as respiratory and diarrhoeal viruses. So in this case, any serological diagnosis would be retrospective and therefore will not be that useful. • There are also viruses which prod ...
... indicate active disease. • However, many viruses often produce clinical disease before the appearance of antibodies such as respiratory and diarrhoeal viruses. So in this case, any serological diagnosis would be retrospective and therefore will not be that useful. • There are also viruses which prod ...
Viruses are host specific and reproduce by either
... when a temperate bacteriophage infects a bacterial cell, it replicates by means of a lysogenic cycle with the viral genome being incorporated into the genome of the host cell . When the phage DNA is incorporated into the host cell genome, it is called a prophage. An example of a lysogenic bacterioph ...
... when a temperate bacteriophage infects a bacterial cell, it replicates by means of a lysogenic cycle with the viral genome being incorporated into the genome of the host cell . When the phage DNA is incorporated into the host cell genome, it is called a prophage. An example of a lysogenic bacterioph ...
Viruses HIV - World of Teaching
... • HIV becomes AIDS when the number of immune cells drops below a predetermined number • No one dies from HIV or AIDS; people die from secondary infections (ranging from the common cold to cancer) • More than 3 million people (size of Chicago) die each year ...
... • HIV becomes AIDS when the number of immune cells drops below a predetermined number • No one dies from HIV or AIDS; people die from secondary infections (ranging from the common cold to cancer) • More than 3 million people (size of Chicago) die each year ...
Viruses
... (Must have a living host-cell) 2. Viruses cannot metabolize (obtain and use energy) 3. Viruses are not made of cells 4. Viruses do not grow/ develop 5. Viruses do not respond to stimulus 6. But Viruses DO have genetic material ...
... (Must have a living host-cell) 2. Viruses cannot metabolize (obtain and use energy) 3. Viruses are not made of cells 4. Viruses do not grow/ develop 5. Viruses do not respond to stimulus 6. But Viruses DO have genetic material ...
Viruses - Fulton County Schools
... • HIV becomes AIDS when the number of immune cells drops below a predetermined number • No one dies from HIV or AIDS; people die from secondary infections (ranging from the common cold to cancer) • More than 3 million people (size of Chicago) die each year ...
... • HIV becomes AIDS when the number of immune cells drops below a predetermined number • No one dies from HIV or AIDS; people die from secondary infections (ranging from the common cold to cancer) • More than 3 million people (size of Chicago) die each year ...
Foundations in Microbiology
... Persistent Human Viruses • All members show latency and cause recurrent infection; viral DNA forms episome • Clinical complications of latency and recurrent infections become more severe with advancing age, cancer chemotherapy, or other conditions that compromise the immune defenses • Common and ser ...
... Persistent Human Viruses • All members show latency and cause recurrent infection; viral DNA forms episome • Clinical complications of latency and recurrent infections become more severe with advancing age, cancer chemotherapy, or other conditions that compromise the immune defenses • Common and ser ...
Chapter 6
... 2. Identify the parts of a virion and describe their function. 3. Distinguish enveloped viruses from nonenveloped viruses. 4. Describe the types of capsid symmetry. ...
... 2. Identify the parts of a virion and describe their function. 3. Distinguish enveloped viruses from nonenveloped viruses. 4. Describe the types of capsid symmetry. ...
Bacteria & Viruses Chapters 24 & 25
... NOT ALIVE & very small (only about 250 amino acids long w/ no nucleic acid) Abnormal proteins that cause disease Cause diseases such as scrapie, BSE, CJD (Creutzfeld-Jakob) Affect central nervous system Kills neurons Onset is very slow ...
... NOT ALIVE & very small (only about 250 amino acids long w/ no nucleic acid) Abnormal proteins that cause disease Cause diseases such as scrapie, BSE, CJD (Creutzfeld-Jakob) Affect central nervous system Kills neurons Onset is very slow ...
Chapter 19 Slides
... • Viruses lead a “borrowed life” between lifeforms and chemicals – Viruses can not reproduce without using a host cell – Viruses do not have any metabolic activity • Viruses do contain genetic material – DNA virus= Double- or single-stranded DNA – RNA virus= Double- or single-stranded RNA ...
... • Viruses lead a “borrowed life” between lifeforms and chemicals – Viruses can not reproduce without using a host cell – Viruses do not have any metabolic activity • Viruses do contain genetic material – DNA virus= Double- or single-stranded DNA – RNA virus= Double- or single-stranded RNA ...
How does the body fight off a virus?
... genes and these accumulate as the virus passes from one person to another. During this process, the virus alters its appearance and our immune memory cells struggle to recognise it, leaving the virus free to infect us once more. This is why you can keep catching the flu - new mutated strains constan ...
... genes and these accumulate as the virus passes from one person to another. During this process, the virus alters its appearance and our immune memory cells struggle to recognise it, leaving the virus free to infect us once more. This is why you can keep catching the flu - new mutated strains constan ...
MICR 201 Microbiology for Health Related Sciences
... Most viruses infect only specific types of cells in one host Host range is determined by specific host attachment sites and cellular factors Contain single type of nucleic acid (DNA or RNA) Contain a protein coat Some are enclosed by an envelope Some viruses have spikes ...
... Most viruses infect only specific types of cells in one host Host range is determined by specific host attachment sites and cellular factors Contain single type of nucleic acid (DNA or RNA) Contain a protein coat Some are enclosed by an envelope Some viruses have spikes ...
Clinical Virology: Part Two The Viruses
... • Reoviridae family – Colorado tick fever • Flaviviridae family – Most common cause of arboviral encephalitis in the world, including St. Louis encephalitis (SLE) – West Nile – Dengue fever (Classic and hemorrhagic) – Yellow fever ...
... • Reoviridae family – Colorado tick fever • Flaviviridae family – Most common cause of arboviral encephalitis in the world, including St. Louis encephalitis (SLE) – West Nile – Dengue fever (Classic and hemorrhagic) – Yellow fever ...
History of Virology
... • The disease also appeared to be spreading slowly northward into the continental United States. • Through experimental transmission to mice, in 1900 Walter Reed demonstrated that yellow fever was caused by a virus, spread by ...
... • The disease also appeared to be spreading slowly northward into the continental United States. • Through experimental transmission to mice, in 1900 Walter Reed demonstrated that yellow fever was caused by a virus, spread by ...
Viruses and Monerans
... Made of a chromosome-like part surrounded by a protein coat. Chromosome like part: carries hereditary material Protein coat (capsid): responsible for different shapes Not made of cells and have no cell parts. Do not grow or respond to environment Can reproduce ONLY inside living cells ...
... Made of a chromosome-like part surrounded by a protein coat. Chromosome like part: carries hereditary material Protein coat (capsid): responsible for different shapes Not made of cells and have no cell parts. Do not grow or respond to environment Can reproduce ONLY inside living cells ...
BIOL 191 Introductory Microbiology
... 1. H (Hemagglutinin) proteins Hemagglutinin is one of two virally-coded integral envelope proteins of the influenza virus. Hemagglutinin is responsible for host cell binding and subsequent fusion of viral and host membranes after the virus has been taken up. In the first step of infection it binds t ...
... 1. H (Hemagglutinin) proteins Hemagglutinin is one of two virally-coded integral envelope proteins of the influenza virus. Hemagglutinin is responsible for host cell binding and subsequent fusion of viral and host membranes after the virus has been taken up. In the first step of infection it binds t ...
20_Bacteria and Virus PowerPoint
... Prion – protein particle that causes disease - misfolded proteins in the brain that cause a chain reaction of misfolding in other normal proteins they contact, clogging the brain tissue and causing disease. ...
... Prion – protein particle that causes disease - misfolded proteins in the brain that cause a chain reaction of misfolding in other normal proteins they contact, clogging the brain tissue and causing disease. ...
Chapter 20
... Prion – protein particle that causes disease - misfolded proteins in the brain that cause a chain reaction of misfolding in other normal proteins they contact, clogging the brain tissue and causing disease. ...
... Prion – protein particle that causes disease - misfolded proteins in the brain that cause a chain reaction of misfolding in other normal proteins they contact, clogging the brain tissue and causing disease. ...
Ch.19 Bacteria Viruses
... nitrogen fixation plants and animals depend on _____________ for nitrogen. Plants need N to make _______________, the building blocks of ____________. About 78% of the atmosphere is N2 gas but plants can not use it directly. Certain bacteria, Rhizobium, convert N2 into usable __________________ Legu ...
... nitrogen fixation plants and animals depend on _____________ for nitrogen. Plants need N to make _______________, the building blocks of ____________. About 78% of the atmosphere is N2 gas but plants can not use it directly. Certain bacteria, Rhizobium, convert N2 into usable __________________ Legu ...
Chapter 21 Viruses
... A virus is a microscopic particle that gets into a cell, takes over its functions, and often destroys it while reproducing. Extremely small. Millions of virus can fit into a bacteria. Can change forms rapidly (mutates). Can’t live on its own, must have a ...
... A virus is a microscopic particle that gets into a cell, takes over its functions, and often destroys it while reproducing. Extremely small. Millions of virus can fit into a bacteria. Can change forms rapidly (mutates). Can’t live on its own, must have a ...
3U 3.3a Viruses
... • Since viruses are not cellular, they’re not formally considered to be organisms and not part of one of the kingdoms. • Not included in classification of life but… • Contain genetic material and reproduce • Non-living because they require a host to reproduce ...
... • Since viruses are not cellular, they’re not formally considered to be organisms and not part of one of the kingdoms. • Not included in classification of life but… • Contain genetic material and reproduce • Non-living because they require a host to reproduce ...
Plant virus
Plant viruses are viruses that affect plants. Like all other viruses, plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate without a host. Plant viruses are pathogenic to higher plants. While this article does not intend to list all plant viruses, it discusses some important viruses as well as their uses in plant molecular biology.