Infectious Diseases: Arthropod-Borne Viral Infections

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What type of bacteria is Haemophilus influenzae?

Facultative anaerobe

Gram-positive

Gram-negative (correct)

Obligate anaerobe

What is the most serious invasive strain of Haemophilus influenzae?

Type d

Type a

Type c

Type b (correct)

What is a common symptom of Haemophilus influenzae infection?

Sudden hair loss

Sudden muscle weakness

Sudden loss of appetite

Sudden onset fever (correct)

What is the main mechanism of disease for Haemophilus influenzae?

Invade white blood cells for replication (A) Signup and view all the answers

What is a complication of Haemophilus influenzae infection?

Neuroinvasive disease (B) Signup and view all the answers

What is a normal habitat of Haemophilus influenzae?

Normal microbiota of healthy people (C) Signup and view all the answers

What is the primary function of the upper respiratory tract?

Warms, humidifies, and filters air (B) Signup and view all the answers

What is the name of the viral infection that causes up to 10% of respiratory illnesses in children?

Adenovirus (A) Signup and view all the answers

What bacterium is commonly associated with otitis media?

All of the above (D) Signup and view all the answers

What is the name of the condition characterized by a barking cough and respiratory stridor?

Croup (C) Signup and view all the answers

What is the name of the virus that is the leading cause of acute lower respiratory tract infection in children under 5 worldwide?

Respiratory Syncytial Virus (RSV) (C) Signup and view all the answers

What is the name of the process by which the mucous membranes lining the lower respiratory tract trap inhaled debris and sweep it towards the mouth?

Mucociliary escalator (C) Signup and view all the answers

What is the primary characteristic of rheumatogenic M proteins in Streptococcal infections?

They are similar to human proteins found in heart valves, joints, and kidneys (D) Signup and view all the answers

What is the primary mode of transmission for Tuberculosis?

Patients with active TB can transmit the disease (A) Signup and view all the answers

What is the primary cause of community-acquired pneumonia in adults?

Haemophilus influenzae (A) Signup and view all the answers

What is the primary function of Lysozyme in the skin's defense mechanisms?

To break down the peptidoglycan of bacterial cell walls (C) Signup and view all the answers

What is the primary mode of transmission for Haemophilus influenzae?

Through the respiratory tract (B) Signup and view all the answers

What is the primary risk group for Streptococcal infections?

Children under the age of 6 (C) Signup and view all the answers

What is the primary symptom of Tuberculosis?

Cough with blood-tinged sputum (B) Signup and view all the answers

What is the primary function of Melanin in the skin's defense mechanisms?

To provide antimicrobial properties (A) Signup and view all the answers

What is the primary characteristic of nontypable strains of Haemophilus influenzae?

They lack polysaccharide capsules (A) Signup and view all the answers

What is the primary mode of transmission for River Blindness?

Through the bite of an infected blackfly (B) Signup and view all the answers