I • Airborne Bacterial Diseases Flashcards
The most common of all human diseases?
respiratory infections
Major vehicles for person to- person transmission of respiratory diseases?
sneeze,as well as by coughing, talking, or breathing.
Microorganisms found in air are derived from ?
soil, water, plants, animals, people, surfaces, and other sources.
Why airborne pathogens are effectively transmitted between people only over short distances?
Most microorganisms survive poorly in air.
why (Staphylococcus, Streptococcus) are generally more resistant to drying than are gram-negative bacteria?
because of their thick, rigid cell walls.
The waxy layer of Mycobacterium cell walls resists drying and promotes survival of pathogens such as?
Mycobacterium tuberculosis
Important human respiratory pathogens?
Streptococcus (pyogenes-pneumoniae)
What is Diphtheria?
Diphtheria is a severe respiratory disease that typically infects young children.
Name of the bacteria causing Diphtheria?
Corynebacterium diphtheriae
Characteristics of Corynebacterium diphtheriae?
a gram-positive, nonmotile, and aerobic club-shaped bacterium that forms small, smooth colonies on blood agar plates.
What is Pertussis? And the second name of it?
is a serious respiratory disease/Pertussis, also known as whooping cough.
Name of the bacteria causing Pertussis?
Bordetella pertussis.
Characteristics of Bordetella pertussis?
A small, gram-negative, aerobic coccobacillus.
Pertussis affects who?
mostly affects children but can cause serious respiratory disease in adults as well.
protection from Pertussis and Diphtheria by ?
by vaccination and cured with antibiotics.
The scientist who isolated and described the causative agent of the disease?
Robert Koch, the founder of the field of medical microbiology.
what is the Name of the bacteria causing Tuberculosis?
Mycobacterium tuberculosis.
What is the Name of the bacteria causing Leprosy?
Mycobacterium leprae.
what is the second name of Tuberculosis?
Hansen’s disease.
Characteristics of Mycobacteria?
gram positive bacteria and share the property of being acid-fast.
Mycobacteria share the property of being acid-fast because?
due to the waxy mycolic acid constituent of their cell walls.
What is Meningitis?
Meningitis is an inflammation of the meninges, the membranes that are the protective covering of the central nervous system, that is, the spinal cord and brain.
It cause by different microorganisms, includes?
certain viruses, bacteria, fungi, and protists.
What is the Name of the bacteria causing Meningitis?
Neisseria meningitidis.
after washing a mycobacterial smear on a slide in 3% hydrochloric acid in?
alcohol
T or F
Colonies of M. tuberculosis grow fast?
F
slowly on plates
M. tuberculos have a characteristically ?
wrinkled morphology
