37 Questions
What is the causative virus of walking pneumonia?
Mycoplasma pneumoniae
What is the mode of transmission for the flu virus?
Aerosol & Droplet
What does 'Drift' refer to in the context of flu viruses?
Small mutations, making host susceptible
Which human virus causes subacute sclerosing panencephalitis (SSPE)?
Measles virus
What is the reservoir for the measles virus?
Humans
'Shift' in flu viruses refers to:
Major mixing of RNAs, leading to a whole new virus
Which Herpes virus causes infectious mononucleosis?
Epstein-Barr virus (EBV)
'Lymphogranuloma venereum' is associated with which bacterium?
Chlamydia trachomatis
How many Herpes viruses infect only humans?
2
What is the major difference between 'Drift' and 'Shift' in flu viruses?
Drift involves small mutations, while Shift involves major mixing of RNAs.
Which bacterial organism is associated with tick bites and Rocky Mountain Spotted Fever (RMSF)?
Rickettsiae rickettsia
What is the characteristic clinical presentation of Subacute Sclerosing Panencephalitis (SSPE)?
Progressive dementia and myoclonic jerks years after initial measles infection
What distinguishes Mycoplasma pneumoniae from other bacterial organisms mentioned?
Mycoplasma pneumoniae lacks a cell wall.
How does the transmission of measles virus primarily occur?
Via respiratory droplets in the air
What is the main reason why preexisting antibodies do not protect against 'Shift' in flu viruses?
'Shift' results in the expression of completely new viral proteins.
Which feature distinguishes Herpes viruses that infect only humans from those that can infect animals?
'Human-only' Herpes viruses lack cross-species infectivity
'Walking pneumonia' is a term used to describe a less severe form of pneumonia caused by which pathogen?
'Walking pneumonia' isn't caused by any specific pathogen
What is the main difference between 'Drift' and 'Shift' in flu viruses?
Drift involves small mutations, while Shift involves major mixing of RNAs.
What type of virus causes measles?
Morbillivirus
What is the reservoir for measles?
Humans
What is SSPE, as related to measles?
Subacute sclerosing panencephalitis
How many Herpes viruses routinely infect only humans?
2
What distinguishes Herpes viruses that infect only humans from those that can also infect animals?
'Human-only' viruses have distinct genetic sequences.
How is influenza typically transmitted?
$2^3$ Aerosol & Droplet
'Lymphogranuloma venereum' is associated with which bacterium?
'Chlamydia trachomatis'
'Walking pneumonia' is a term used to describe a less severe form of pneumonia caused by which pathogen?
'Mycoplasma pneumoniae'
'Shift' in flu viruses refers to:
$6-2$ major changes leading to a whole new virus.
What type of virus causes Measles?
Paramyxovirus
Which pathogen is associated with Lymphogranuloma venereum?
Chlamydia trachomatis
What is the primary transmission route for Influenza?
Aerosol & Droplet
What is a significant characteristic of Shift in flu viruses?
Major mixing of RNAs, whole new virus
Which bacterial organism is linked to Tick bites resulting in Rocky Mountain Spotted Fever?
Rickettsiae rickettsia
What is the characteristic clinical progression of Subacute Sclerosing Panencephalitis (SSPE)?
Insidious onset, early dementia, seizures
How many Herpes viruses exclusively infect humans?
7
'Drift' in flu viruses primarily involves:
'New' HA or NA proteins
'Walking pneumonia' is caused by which pathogen?
Mycoplasma pneumoniae
What characterizes 'Shift' in flu viruses?
Genetic reassortment leading to whole new viruses
Test your knowledge on miscellaneous bacterial organisms and flu viruses. Match bacterial organisms with their corresponding diseases and answer questions related to flu virus strains and transmission.
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