Acute Respiratory Tract Infection Quiz
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Questions and Answers

How is acute respiratory infection defined?

Acute respiratory infection is defined as an episode of acute symptoms and signs resulting from infection of any part of the respiratory tract or related structures (extending for less than 30 days).

Which of the following are common symptoms of acute respiratory infection?

  • Sore throat (correct)
  • Cough (correct)
  • Difficult breathing (correct)
  • Running nose (correct)
  • Ear problems (correct)
  • Fever (correct)
  • What are the two main categories of ARIs based on their location?

  • Lower respiratory tract infections (ALRIs) (correct)
  • Upper respiratory tract infections (AURIs) (correct)
  • Viral agents are primarily responsible for lower respiratory tract infections (ALRIs) in infants and young children.

    <p>False (B)</p> Signup and view all the answers

    Which of the following are common viral agents of ALRI in infants and young children?

    <p>Measles (A), Mumps (B), Respiratory syncytial virus (RSV) (C), Parainfluenza viruses (D), Influenza A and B (E), Adenoviruses (F)</p> Signup and view all the answers

    Match the following bacterial agents with their associated respiratory complications:

    <p>Streptococcus pneumonia = Pneumonia Haemophilus influenza = Pneumonia, Meningitis Pertussis = Whooping cough Streptococcal pyogenes = Strep throat, Scarlet fever, Pneumonia</p> Signup and view all the answers

    The severity of acute respiratory infection is most severe at the extremes of age.

    <p>True (A)</p> Signup and view all the answers

    Which of the following are considered aggravating host factors for ARIs?

    <p>Lack of breastfeeding (A), Delayed and improper treatment (B), Lack of past immunological experience (C), Poor vaccine coverage (D), Malnutrition (E), Low birth weight (F)</p> Signup and view all the answers

    Which of the following are considered environmental factors for ARIs?

    <p>Low socioeconomic condition (A), Bad ventilation (B), Overcrowding (C), Large family size (D), Outdoor and indoor air pollution (E), Urban areas (F), Unhealthy child care practices (G)</p> Signup and view all the answers

    Acute respiratory diseases are a leading cause of death from infectious diseases worldwide.

    <p>True (A)</p> Signup and view all the answers

    The incidence of common colds is highest in children under 5 years of age.

    <p>True (A)</p> Signup and view all the answers

    Which of the following are modes of transmission for ARIs?

    <p>Indirect contact through contaminated objects (A), Direct contact through airborne droplets (B)</p> Signup and view all the answers

    What is the typical incubation period for common colds?

    <p>Between 12 hours and 5 days, usually 48 hours, varying with the agent.</p> Signup and view all the answers

    What is the period of communicability for common colds?

    <p>24 hours before onset and for 5 days after onset.</p> Signup and view all the answers

    Which of the following are essential preventative measures for ARIs?

    <p>Adequate ventilation (A), Avoiding smoking in households with children (B), Personal hygiene (C), Avoiding crowding (D)</p> Signup and view all the answers

    Which of the following are control measures for ARIs?

    <p>Environmental sanitation (A), Symptomatic treatment (B), Adequate nutrition (C), Sterilization and disinfection (D)</p> Signup and view all the answers

    Which of the following are common symptoms associated with COVID-19?

    <p>Cough (A), Enteric symptoms (B), Musculoskeletal symptoms (C), Fever (D), Otolaryngeal symptoms (E), Sputum (F), Shortness of breath (G)</p> Signup and view all the answers

    What are some factors that might affect the severity of COVID-19 in a patient?

    <p>Immune impairment (A), Pregnancy (B), COPD (C), Cancer (D), Type 2 Diabetes (E), Heart disease (F), Sickle cell anemia (G), Obesity (H), Cerebrovascular disease (I), Smoking (J), Chronic kidney disease (K)</p> Signup and view all the answers

    What are the three levels of prevention for COVID-19?

    <p>Tertiary prevention (A), Secondary prevention (B), Primary prevention (C)</p> Signup and view all the answers

    The MMR vaccine is a live-attenuated vaccine.

    <p>True (A)</p> Signup and view all the answers

    The whole cell pertussis vaccine is a killed vaccine.

    <p>True (A)</p> Signup and view all the answers

    The DTaP vaccine contains purified, inactivated components of Bordetella pertussis cells.

    <p>True (A)</p> Signup and view all the answers

    Diphtheria vaccination involves active immunization with diphtheria toxoid.

    <p>True (A)</p> Signup and view all the answers

    The BCG vaccine is a live-attenuated variant of the Mycobacterium tuberculosis bacterium.

    <p>True (A)</p> Signup and view all the answers

    Meningococcal polysaccharide vaccines are available in monovalent, bivalent, and polyvalent forms.

    <p>True (A)</p> Signup and view all the answers

    The pneumococcal conjugate vaccine (PCV13) is recommended for all children under 2 years of age.

    <p>True (A)</p> Signup and view all the answers

    The Haemophilus influenzae type b (Hib) vaccine is a polysaccharide conjugate vaccine.

    <p>True (A)</p> Signup and view all the answers

    The pneumococcal polysaccharide vaccine (PPSV23) is recommended for adults 65 years of age and older.

    <p>True (A)</p> Signup and view all the answers

    What is the definition of an acute respiratory infection?

    <p>An episode of acute symptoms and signs resulting from infection of any part of the respiratory tract or related structures (extending for less than 30 days).</p> Signup and view all the answers

    Which of the following is NOT a clinical feature of ARIs?

    <p>Headache (E)</p> Signup and view all the answers

    Viral agents are responsible for over 90% of cases of community-acquired acute diseases of AURIs and a considerable proportion of ALRIs.

    <p>True (A)</p> Signup and view all the answers

    Which of these is NOT a common viral agent of ALRI in infants and young children?

    <p>Haemophilus influenza (A), Streptococcus pneumonia (F)</p> Signup and view all the answers

    Which of the following factors aggravates the occurrence of ARIs?

    <p>Malnutrition (A), Age (B), Urban areas (C), Outdoor and indoor air pollution (D), Overcrowding and bad ventilation (E), Low birth weight (F), Presence of siblings in schools (G), Lack of breastfeeding (H), Large family size and low socioeconomic condition (I), Poor vaccine coverage (J), Delayed and improper treatment (K), Attending nurseries (L)</p> Signup and view all the answers

    Acute viral rhinitis is a common condition that can be caused by a variety of viruses.

    <p>True (A)</p> Signup and view all the answers

    Which of the following is NOT a common transmission route for acute viral rhinitis?

    <p>Insect bites (B)</p> Signup and view all the answers

    What is the incubation period for COVID-19?

    <p>Around 5 days (range: 2-14 days)</p> Signup and view all the answers

    Which of these is NOT a typical symptom of COVID-19?

    <p>Congestion (A)</p> Signup and view all the answers

    Which of the following individuals is NOT considered at higher risk for severe COVID-19?

    <p>Athletes with cardiovascular health (D)</p> Signup and view all the answers

    What are some control measures for COVID-19 in healthcare settings?

    <p>Disinfection and sterilization of contaminated objects, wearing masks and PPE, case detection, isolation and treatment, surveillance for contacts, social distancing, adequate nutrition, and environmental and occupational measures.</p> Signup and view all the answers

    Measles, mumps, and rubella are preventable diseases with a safe and effective vaccine available.

    <p>True (A)</p> Signup and view all the answers

    The pertussis vaccine is administered in a single dose to infants.

    <p>False (B)</p> Signup and view all the answers

    What is the type of vaccine used for diphtheria?

    <p>diphtheria toxoid</p> Signup and view all the answers

    What type of vaccine is the BCG vaccine for tuberculosis?

    <p>Live attenuated variant prepared from bovine tubercle bacilli.</p> Signup and view all the answers

    Meningococcal polysaccharide vaccines are effective against all strains of meningococcal bacteria.

    <p>False (B)</p> Signup and view all the answers

    What is the type of vaccine used for Haemophilus influenza type b (Hib) disease?

    <p>Polysaccharide conjugate vaccine</p> Signup and view all the answers

    The Pneumovax® (PPSV23) vaccine is only recommended for adults 65 years of age or older.

    <p>False (B)</p> Signup and view all the answers

    Flashcards

    Acute Respiratory Tract Infection (ARI)

    A short-term illness (less than 30 days) caused by infection in any part of the respiratory system or related areas.

    Acute Upper Respiratory Tract Infections (AURIs)

    Infections affecting the upper respiratory tract, including the nose, throat, and sinuses.

    Acute Lower Respiratory Tract Infections (ALRIs)

    Infections affecting the lower respiratory tract, including the lungs, airways, and trachea.

    Common Cold (Acute Viral Rhinitis)

    A common viral infection of the nose and upper respiratory tract, causing symptoms like runny nose and sneezing.

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    Viral ARI Agents

    Viruses responsible for over 90% of community-acquired upper respiratory infections.

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    Bacterial ARI Agents

    Bacteria such as Pertussis, Streptococcus pneumoniae, and Haemophilus influenzae that can cause ARIs.

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    Age (ARI risk factor)

    Infants and young children are at greatest risk due to a lack of immune experience and smaller airways.

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    Low Birth Weight (ARI risk factor)

    LBW babies have a significantly increased risk of death from ARI than normal birth weight babies.

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    Malnutrition (ARI risk factor)

    Protein-energy malnutrition and anemia weaken the immune system.

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    Vaccination (ARI prevention)

    Protecting against infections like pertussis and measles by vaccination.

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    Crowding (ARI risk factor)

    Overcrowded living conditions increase the spread of respiratory illnesses.

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    Air pollution (ARI risk factor)

    Indoor and outdoor air pollution, like cigarette smoke, worsens respiratory conditions.

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    Incubation Period (Common Cold)

    The time between infection and the appearance of symptoms, typically 12 hours to 5 days.

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    Period of Communicability (Common Cold)

    The time the infected person can transmit the illness, from 24 hrs before to 5 days after the onset of symptoms.

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    COVID-19

    Complex disease, not only respiratory, with potential systemic involvement.

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    COVID-19 Prevention

    Measures to prevent COVID transmission including masks, social distancing, vaccination etc.

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    COVID-19 Risk Factors

    Certain conditions, like diabetes, heart disease and cancer increase severity of COVID-19

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    ARI Prevention

    Measures like hand hygiene, covering coughs/sneezes and avoiding crowded areas to limit infection spread.

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    ARI Control

    Public health interventions like sanitation, supportive care for patients and isolating patients.

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    Hand hygiene

    Washing hands frequently with soap and water to reduce transmission of infectious agents.

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    Vaccination

    Preventive inoculation for developing immunity against specific diseases.

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    Acellular pertussis vaccine

    Purified pertussis vaccine, associated with fewer adverse effects compared to whole-cell vaccine.

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    What is ARI?

    An infection affecting the respiratory tract, lasting less than 30 days. It can include symptoms like cough, fever, sore throat, and difficulty breathing.

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    What are AURIs?

    Infections that affect the upper respiratory tract, like the nose, sinuses, and throat. Examples include the common cold, pharyngitis, and otitis media.

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    What are ALRIs?

    Infections affecting the lower respiratory tract, involving the airways, lungs, and trachea. Examples include pneumonia, bronchitis, and bronchiolitis.

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    Common Cold

    A mild viral infection of the upper respiratory tract causing symptoms like runny nose, sneezing, and sore throat.

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    What are the common ARI symptoms?

    ARI symptoms can include fever, runny nose, cough, sore throat, difficulty breathing, and ear problems.

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    Why are infants and young children at higher ARI risk?

    Infants and young children are more vulnerable to ARIs due to underdeveloped immune systems and smaller airways.

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    What is the impact of low birth weight on ARI risk?

    Babies born with low birth weight have a significantly higher risk of death from ARI compared to babies with normal birth weight.

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    How does malnutrition affect ARI?

    Malnutrition, especially protein-energy malnutrition and anemia, weakens the immune system, making children more susceptible to ARIs.

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    Impact of Crowding on ARIs

    Crowded living conditions increase the spread of respiratory illnesses due to close contact and airborne transmission.

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    How does air pollution impact ARIs?

    Indoor and outdoor air pollution, like cigarette smoke, irritates the respiratory system and increases the risk of ARI complications.

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    How do we prevent ARIs?

    Practicing good hygiene, getting vaccinated for preventable infections, and avoiding crowded spaces can help prevent the spread of respiratory illnesses.

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    What is COVID-19?

    A complex disease caused by a virus, affecting not just the respiratory system but also other organs, possibly leading to various complications.

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    What are some risk factors for severe COVID-19?

    Conditions like diabetes, heart disease, cancer, and weakened immune systems can make COVID-19 more serious.

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    What is pertussis?

    A highly contagious bacterial infection that causes severe coughing fits, especially harmful to babies and young children.

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    Pertussis Vaccination

    Getting vaccinated against pertussis, usually combined with diphtheria and tetanus, helps protect against this serious infection.

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    Diphtheria Vaccination

    Vaccines containing diphtheria toxoid protect against this serious bacterial infection, which can cause throat inflammation and breathing difficulties.

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    Tuberculosis Vaccination

    The BCG vaccine, given to newborns, provides partial protection against tuberculosis, a bacterial infection affecting the lungs.

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    Meningitis Vaccination

    Vaccines protect against bacterial meningitis, a serious infection of the membranes surrounding the brain and spinal cord.

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    Haemophilus influenzae type b (Hib) Vaccination

    The Hib vaccine protects babies and young children against serious Hib infections, including meningitis and pneumonia.

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    What are some ways to control outbreaks?

    Controlling outbreaks involves identifying and isolating infected individuals, treating them, and implementing measures like handwashing, social distancing, and disinfection.

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    Study Notes

    Acute Respiratory Tract Infection

    • Acute respiratory infection (ARI) is an episode of acute symptoms and signs from infection of any part of the respiratory tract lasting less than 30 days.
    • ARIs are classified by infection site:
      • Acute upper respiratory infections (AURIs): common cold, pharyngitis, and otitis media
      • Acute lower respiratory infections (ALRIs): epiglottitis, laryngitis, tracheitis, bronchitis, bronchiolitis, alveolitis, and pneumonia
    • Clinical features include: fever, runny nose, cough, sore throat, difficult breathing, and ear problems.
    • Viral agents cause over 90% of community-acquired ARIs in AURIs, and a large proportion of ALRIs. The most common viral agents causing ALRIs in infants/young children are Respiratory syncytial virus, adenoviruses, parainfluenza, influenza A and B viruses, measles, mumps, and German Measles.
    • Bacterial agents that can cause complications include pertussis, streptococcal pyogenes, Streptococcus pneumonia, and Haemophilus influenza.
    • Factors affecting ARI occurrence:
      • Age: Severity is worse in younger ages due to lack of past immunological experience and susceptible smaller airways.
      • Low birth weight: LBW babies are at higher risk of death.
      • Lack of breast feeding: Low immunity in children.
      • Malnutrition (e.g., PEM, anemia): Impaired immunity and health.
      • Poor vaccine coverage for vaccine preventable respiratory diseases.
      • Delayed or improper treatment of ARIs, especially those complicated with pneumonia.
      • Presence of siblings (especially at schools): Increased spread of infection.
      • Children attending nurseries (childcare centers): Higher chance of infection.
      • Environmental factors:
        • Higher rates in urban areas compared to rural areas.
        • Overcrowding and poor ventilation.
        • Large family size and low socioeconomic status.
        • Outdoor and indoor pollution (e.g., smoking, combustion in rural areas).
        • Unhealthy child care practices.
    • Magnitude of the problem
      • ARIs are a leading cause of death from infectious diseases.
      • Morbidity and mortality are significant, especially in children.
      • Adults also experience high incidence, disability, resulting in significant economic loss. ARIs are thus major global health problems.
    • AcuteViral Rhinitis (Common Cold)
      • An acute catarrhal infection of the upper respiratory tract characterized by coryza, sneezing, lacrimation, irritation of the nasopharynx, chilliness, and malaise lasting 2–7 days.
      • Fever is uncommon in children older than 3 years and rare in adults.
      • Disability is important because it affects work performance and absenteeism; it may lead to laryngitis, tracheitis, bronchitis, and further complications like sinusitis or otitis media.
    • Mode of transmission
      • Direct contact through inhalation of airborne droplets.
      • Indirect contact through hands and articles contaminated with discharges.
    • Incubation period: 12 hours to 5 days, usually around 48 hours, varying with the agent.
    • Period of communicability: 24 hours before onset of symptoms and for 5 days after onset.
    • Prevention:
      • Educate the public on personal hygiene (frequent handwashing, covering mouth when coughing or sneezing, safe disposal of oral/nasal discharges).
      • Avoid crowding when possible.
      • Provide adequate ventilation.
      • Avoid smoking in households with children (passive smoke exposure increases pneumonia risk).
    • Control:
      • Sterilize and disinfect items contaminated with respiratory discharges.
      • Symptomatic treatment for patients.
      • Adequate nutrition.
      • Environmental sanitation
    • COVID-19:
      • Incubation period: Roughly 5 days (range: 2–14 days).
      • Symptoms: Often unspecific, beyond just respiratory infection (cough, sputum, shortness of breath, fever, musculoskeletal symptoms, enteric or otolaryngeal symptoms).
      • Additional complications involving the coronary heart, thrombosis, embolism, dermatological lesions, renal and hepatic systems
      • Diagnosis: Lab investigations, chest X-ray, CT findings, and PCR tests.
    • Susceptible persons for severe COVID-19.
      • Cancer patients
      • COPD
      • Obesity
      • Immunocompromised people
      • Pregnant people
      • Smokers
      • Type 2 diabetes
      • Pregnancy
      • Sickle cell anemia
      • Heart disease
      • Chronic kidney disease
      • Cerebrovascular disease
    • Prevention of COVID-19
      • Primary prevention: Masks, social distancing, and vaccination.
      • Secondary prevention: Early detection and treatment (swabs).
      • Tertiary prevention: Rehabilitation of those impaired.
    • Control of COVID-19
      • Disinfect and sterilize contaminated items
      • HCWs should wear masks and PPE
      • Case detection, isolation, and immediate treatment
      • Surveillance of contacts
      • Social distancing and maintaining hygiene
      • Adequate nutrition
    • Vaccine-Preventable Respiratory Diseases:
    • Measles, Mumps, Rubella (MMR)
      • Types: Live-attenuated vaccine.
      • Dose and administration: Single 0.5 ml subcutaneous dose for routine immunization of children aged 18 months and for immunization of children up to 12 years who haven't had chickenpox.
      • Efficacy: 85-90% for disease prevention and 100% for severity prevention.
    • Whooping Cough
      • Type: Killed Whole-cell pertussis vaccine
      • Administration: Combination with diphtheria and tetanus toxoids (DPT) in infants (2, 4, 6 months). Booster dose at 18 months.
    • Adverse effects: Some mild systemic effects (fever, swelling, pain at injection site). Severe systemic effects are less common.
    • Acellular pertussis vaccine (DTaP): Contains purified, inactivated components of Bordetella pertussis (pertussis toxin, filamentous haemagglutinin). Frequently is combined into DTaP vaccines.
      • Diphtheria: Active immunization with diphtheria toxoid. Preparations are combined with tetanus toxoid and either acellular pertussis antigens (DaPT) or whole-cell pertussis vaccine (DPT).
      • Tuberculosis: BCG vaccination administered to newborns via intradermal injection. 0.05 ml (newborns), 0.1 ml (others). Live attenuated vaccine from bovine tubercle bacilli.
      • Meningitis: Purified meningococcal polysaccharides (monovalent, bivalent or polyvalent). A single subcutaneous injection after 2 years of age.
      • Pneumococcal pneumonia: PCV13 (pneumococcal conjugate vaccine recommended for children under 2, adults > 65, certain 2-64 year olds, and 19–64 year olds who smoke..
      • Haemophilus influenza: Hib vaccine as a polysaccharide conjugate vaccine. It may be monovalent or polyvalent and can be given with others. Haemophilus influenza b causes mainly severe meningitis..
      • Haemophilus influenza: PCV23 (23-valent polysaccharide vaccine), recommended for adults > 65, immunocompromised adults, and those with chronic conditions (such as asthma or cancer).

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    Description

    Test your knowledge on acute respiratory tract infections, including the classification, symptoms, and common viral and bacterial agents involved. This quiz covers both upper and lower respiratory infections as well as their clinical features. Perfect for students and health professionals alike!

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