Viruses Flashcards
Tacaribe, Guanarito, Junin and Machupo
New world Arena virus
Mus musculus
Mastomys natalensis
Old world Arena virus
Meningitis
Lymphocytic Choriomeningitis
hemorrhagic fever + influenza like
Lassa Virus
Sand shape appearance in electron microscope
Acquired through inhalation from infected rodent or direct contact
Arenavirus
Transmitted by mosquito, ticks and sandfly
Bunyavirus
LaCrosse & California Encephalitis
Brain and liver
Hemorrhagic Fever
Vascular Endothelium and Liver
Small( 30 to 38) nm rounded nonenveloped that cause gastroenteritis to humans
Calcivirus
acquired from civet cat that originated from Guangdong, China
SARS-COV1
possibly acquired from pangolin that originated for Wuhan, China.
SARS-COV2
Aedes aegypti, Aedes albopictus and Aedes polynesiansis.
Dengue vectors
Major protein in dengue virus
E for envelope protein
Previously under calicivirus;
High Case Fatality Rate in Pregnant Women
( 10-20%)
Hepevirus
Do not have segments that’s why they don’t undergo antigenic shift
Paramyxovirus
Highly contagious accompanied by maculopapular rash and fever
Measles or Morbilivirus
Associated with winter epidemics bronchiolitis and pneumonia which is common in children
Metapneumovirus
The most common cause of aseptic meningitis or inflammation of brain parenchyma
Primary MOT: respiratory or gastrointestinal
Enteroviruses
NAKED virus
PIcornavirus, REovirus, CAlicivirus,PApovavirus, PArvovirus, ADEnovirus
Protein shell or coat that encloses the nucleic acid
Capsid
Nucleic acid + Capsid (Enclosed)
Nucleocapsid
Morphological units seen on the surface of particles
Capsomeres
A lipid containing membrane that surrounds some viral particles
Envelope
Protomers are the smallest functional unit equivalent to building units of the capsid
Structural Units
Shell vial
Cell culture
Derived from animals
Primary cell culture
derived from embryonic tissues
Semi-continuous cell culture
derived from tumor or malignant tissues
Continuous cell culture
Largest DNA virus
Poxivurs
Smallest DNA virus
Parvovirus
All are double stranded DNA virus EXCEPT
Parvovirus
All DNA virus are icosahedral Except
Poxvirus
All DNA virus are enveloped Except
PAvovavirus, ADEnovirus, PArvovirus
DNA virus that multiplies in cytoplasm
Poxvirus
Grape like cluster
Adenovirus
DNA virus: Gastroenteritis in children
Adenovirus serotype 40 and 41
Recurrence of skin lesion after primary infection
HSV1 and HSV 2
Latency: SENSORY NERVE GANGLIA
HSV1 and HSV 2
Cold sores or Fever blisters, Gingivostomatitis, Herpes Labialis, Keratitis, Pharyngitis, Herpetic Whitlow, Encephalitis
HSV1
Genital infection
HSV2
Transmitted through personal contact especially respiratory
VARICELLA ZOSTER VIRUS
Chicken pox
Varicella
Zoster
Shingles
Presence of skin rash with blisters that look like skin rashes, dew drops in a rose petal
Varicella Zoster
Transmitted through saliva
Epstein barr/HHV4
Causative agent of Infectious mononucleosis ( Glandular Fever), Burkitt lymphoma and Nasopharyngeal carcinoma
Epstein barr/HHV4
latency: B VIRUS
Epstein barr/HHV4
Salivary gland virus
Bull’s eye
CYTOMEGALOVIRUS/ HHV-5
Transmitted through close contact with secretions, blood transfusion (WBC), organ transplant and transplacenta
Viral mental retardation and congenital disease
CYTOMEGALOVIRUS/ HHV-5
Transmitted through respiratory secretions; almost all children from age 2-3 years old
Latency: CDS/T HEPLER CELLS
HUMAN HERPES VIRUS-6(HHV-6) AND HHV 7
Fever w/ short rash
Lymphotropic virus and Roseola (Exanthem subitum)
Kaposi Sarcoma
Rhadinovirus/HHV8