Chap 16 Flashcards
(31 cards)
Another name for measles
Rubeola
Measles member of which genus?
Morbillivirus
Genome type of measles virus
Single stranded RNA
Enveloped
Where does measles virus implants first?
Respiratory mucosa and infects tracheal an bronchial cells
Where does measles virus replicates?
Lymphatic system
How measles reaches skins and various organs ?
Viremia
Through bloodstream
Measles causes syncytia
True
False
True
How is measles transmitted?
Respiratory droplets
Humans and birds are the only reservoir of measles
True or false
False
Only humans
At what stages of measles it’s infectious?
Incubation
Prodromal
Skin rash
But not
Convalescence
What’s the vaccine for measles?
MMR
How long is the protection by measles vaccine?
20 years
At what age you get MMR vaccine?
12 to 15 month
Booster before school
What makes skin cells waterproof?
Keratin
Chemicals that protect skin are positively or negatively charged?
Positive
Bacterial membrane is negative charge
Is skin Ph high or low? Y?
Low makes it inhospitable to microbes
What’s the use of skin oiliness?
Lipids are nutrients for microbiota and toxic byproducts inhibit the growth of unpleasant microbes
How sweat defends skin?
Low PH and high salt is inhibitory to microbes
What’s lysozyme?
Enzyme found in tear sweat and saliva
Break downs peptidoglycan of bacteria cell walls
True or false
Human microbiota changes relatively over time
False
All people have the same microbiota true or false
False
Name a yeast which is normal biota
Candida
Bacteria which are our normal biota
Streptococcus Staphylococcus Corynebacterium Pseudomonas Lactobacillus
Staphylococcus is gram positive or negative?
Positive
