6.5: Viruses in Microbiology II Flashcards
Polio, also known as what?
Linear or Non-Linear:
Strands:
Enveloped or Naked:
RNA or DNA:
Nucleotide Count:
Belongs to a family of viruses called:
Transmission:
Symptoms:
-poliomyelitis
-single-stranded
-non-enveloped
-RNA virus
-about 7,700 nucleotides long
-Picornaviridae
- Respiratory Droplets and Fecal-Oral Route
-damages motor neurons which can lead to temporary or permanent paralysis.
Influenza, also known as what?
Linear or Non-Linear:
Strands:
Enveloped or Naked:
RNA or DNA:
Nucleotide Count:
Belongs to a family of viruses called:
Transmission:
Symptoms:
-There are three common subtypes named influenza A, B, or C
-segmented single-stranded
-enveloped
-RNA virus
-50 to 120 nm in diameter
-Orthomyxoviridae
-Respiratory drops and Fomites
-Fever/Chills, body aches, coughing/sneezing
Polio is also known as ______.
poliomyelitis
Polio is ______-stranded.
Single
Is Polio enveloped or naked (non-enveloped)
Naked/Non-enveloped
Polio is DNA or RNA Virus?
RNA Virus
Polio Virus is ______ nucleotides long.
7,700
Poliovirus belongs to a family of viruses called ______.
Picornaviridae.
Polio’s viral particle is only about ___1___ in diameter and is often considered the most ___2___.
- 30 nm
- significant small virus
When infected, the poliovirus can enter the ___1___ where it replicates in and damages ___2___.
- central nervous system (CNS)
- motor neurons
Polio Infected neurons can be found within the ___1___, ___2___, or ___3___ regions, all of which can lead to temporary or permanent ___4___.
- spinal cord
- brain stem
- motor cortex
- paralysis
Polio, once a worldwide epidemic, the introduction of the polio vaccine in ______ radically altered the landscape of medicine.
1955
The polio vaccine was developed by ___1___ at the ___2___.
- Jonas Salk
- University of Pittsburgh
Approximately ______ percent of individuals receiving an injection of the inactivated polio vaccine (IPV) developed protective antibodies against the virus.
90
What does IPV stand for?
inactivated polio vaccine
In ___1___, ___2___ developed an oral vaccine given by mouth (OPV) containing a live but weakened (attenuated) virus.
- 1961
- Albert Sabin
Individuals receiving the OPV also developed protective antibodies and with repeated dosages about ______ percent protection.
95
True or False: Although immune protection was higher in IPV cases, the administration benefits (drops placed in mouth vs injection with a sterile syringe) made OPV a popular choice, especially in developing countries.
True
Influenza belongs to a family of viruses called ______.
Orthomyxoviridae
There are three common subtypes of influenza named ___1___, ___2___, and ___3___.
- Influenza A
- Influenza B
- Influenza C
Influenza is ______-stranded
segmented single
Is Influenza enveloped or non-enveloped(naked)?
enveloped
Influenza is ______NA virus
RNA Virus
Influenza is about ______ in diameter.
about 50 to 120 nm in diameter.