RNA VIRUSES

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338 Terms

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  1. MYXOVIRUSES

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  1. PARAMYXOVIRUSES

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  1. RHABDOVIRUSES

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  1. REOVIRUSES

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  1. PICORNAVIRUSES

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  1. TOGAVIRUSES

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  1. FLAVIVIRUSES

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  1. FILOVIRUSES

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  1. DELTAVIRIDAE

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  1. RETROVIRIDAE

RNA Viruses

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INFLUENZA VIRUS

Myxoviruses Examples

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MUMPS VIRUS

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MEASLES VIRUS

Paramyxoviruses Examples

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RABIES VIRUS

Rhabdoviruses Examples

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ROTAVIRUSES

Reoviruses Examples

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POLIOVIRUS

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RHINOVIRUS

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HEPATITIS A VIRUS (HAV)

Picornaviruses Examples

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RUBELLA

Togaviruses Examples

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YELLOW FEVER VIRUS

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HCV

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DENGUE VIRUS

Flaviviruses Examples

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EBOLA VIRUS

Filoviruses Examples

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HDV

Deltaviridae Examples

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HUMAN T-CELL LEUKEMIA (HTLV-1)

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HUMAN IMMUNODEFICIENCY VIRUS (HIV)

Retroviridae Examples

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COAT • Enveloped.

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CAPSOMERES • Helical Symmetric Capsid.

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NUCLEIC ACID • Segmented RNA - (+) ss RNA.

INFLUENZA VIRUS

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Coat -

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Capsomeres -

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Nucleic Acid -

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HEMAGGLUTININ and NEURAMINIDASE

spikes that project from the envelope in Influenza Virus

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LINING the UPPER RESPIRATORY

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TRACT

Influenza Virus only multiplies in the cells ____

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Absorption of TOXIC breakdown products from the DYING

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CELLS on the RESPIRATORY Epithelium.

The Constitutional Symptoms of INFLUENZA are probably

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brought about by:

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INFLUENZA VIRUS

Capable of Extensive ANTIGENIC VARIATIONS

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These NEW Antigenic Types can cause PANDEMICS

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ANTIGENIC VARIATIONS

Production of new types of viruses which the human

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population does NOT have effective immunity agains

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COAT • Enveloped.

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CAPSOMERES • Helical Capsid.

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NUCLEIC ACID • (-) ss RNA.

Mumps Virus

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Coat -

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Capsomeres -

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Nucleic Acid -

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PAROTID and SUBMAXILLARY SALIVARY GLANDS.

Mumps Virus infection in children produces characteristic swelling of ___

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MUMPS VIRUS

The disease can have - NEUROLOGICAL COMPLICATIONS.

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o EXAMPLE: Meningitis - especially in Adults.

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COAT • Enveloped.

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CAPSOMERES • Helical Capsid.

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NUCLEIC ACID • (-) ss RNA.

Measles Virus

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Coat -

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Capsomeres -

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Nucleic Acid -

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MEASLES VIRUS

• Very COMMON - Childhood Fever.

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• IMMUNITY is LIFELONG.

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• SECOND ATTACKS are very RARE

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COAT • Enveloped.

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CAPSOMERES • Helical Capsid.

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NUCLEIC ACID • (-) ss RNA.

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SHAPE • Bullet-shaped.

Rabies Virus

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Coat -

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Capsomeres -

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Nucleic Acid -

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Shape -

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RABIES VIRUS

• very wide host range, infecting all mammals: dogs,cats and cattle are particularly susceptible

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• incubation period is extremely varied, ranging from 6 days up to 1 year

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FATAL ENCEPHALITIS

Rabies virus remains LOCALIZED at the wound site of entry for a while before passing along nerve fibers to central nervous system, producing a fatal ____

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CAPSOMERES • Inner Core is surrounded by Two Concentric Icosahedral Shells.

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NUCLEIC ACID • Segmented ds RNA.

Rotaviruses

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Capsomeres -

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Nucleic Acid -

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ROTAVIRUSES

• Very COMMON cause of GASTROENTERITIS for infants

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• SPREADS THROUGH:

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o Poor Water Supplies.

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o Standards of General Hygiene are Low

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• In developing countries, it is responsible for about a MILLION

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DEATHS each year.

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PICORNAVIRUSES

smallest viruses

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COAT • Naked.

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CAPSOMERES • Icosahedral - Polyhedral.

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NUCLEIC ACID • (+) ss RNA.

Polioviruses

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Coat -

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Capsomeres -

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Nucleic Acid -

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POLIOVIRUSES

• One of the groups of

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ENTEROVIRUSES -

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o Common in the GUT of humans.

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• ASYMPTOMATIC 95% of the time.

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LYMPHOID TISSUE of the

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Alimentary Tract