Respiratory Infection Statistics

January–February 2024

Respiratory Infection Statistics
January–February 2024
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Summary Comments

  • Most frequently detected viruses during February 2024 (all age groups):
    • Rhino/Enterovirus: 36.6%
    • Rhinovirus: 32.6%
    • Parainfluenza virus 1–4: 9.8%
  • Epidemiological Week 1–9:
    • SARS-CoV-2: Stable positivity over the last 5 weeks.
    • Influenza A: 2.6% positivity in week 9.
    • Influenza B: 3.7% positivity in week 9.
    • RSV: Increasing trend, reaching 12.8% in week 9.

Respiratory Viral Multiplex PCR and SARS-CoV-2 PCR: All Age Groups

January 2024:

  • Rhino/Enterovirus: 24.3%
  • Rhinovirus: 21.2%
  • SARS-CoV-2: 8.78%
  • RSV: 2.2%
  • Parainfluenza 1-4: 3.0%
  • Adenovirus: 6.9%
  • Influenza A: 3.0%
  • Influenza B: 3.1%

February 2024:

  • Rhino/Enterovirus: 36.6%
  • Rhinovirus: 32.6%
  • SARS-CoV-2: 5.3%
  • RSV: 7.9%
  • Parainfluenza 1-4: 9.8%
  • Adenovirus: 7.7%
  • Influenza A: 3.7%
  • Influenza B: 1.0%

Weekly Positivity Trends (Week 1–9):

  • SARS-CoV-2: Stable
  • Influenza A: 2.6% (week 9)
  • Influenza B: 3.7% (week 9)
  • RSV: Increased to 12.8% (week 9)

Atypical Bacterial Pathogens (Week 1–9)

Weekly Case Totals:

  • Bordetella pertussis: 5, 9, 7, 6, 9, 9, 5, 6, 4
  • Mycoplasma pneumoniae: 5, 15, 13, 23, 10, 11, 15, 20, 14
  • Chlamydia pneumoniae: 5, 7, 10, 8, 18, 12, 15, 22, 7

Legionella pneumophila:

  • 4 cases detected during February 2024

Age Distribution (Week 1–9):

B. pertussis:

  • 0–6 months: 17%
  • 6–12 months: 10%
  • 1–5 years: 28%
  • 6–12 years: 15%
  • 13–18 years: 2%
  • 19–64 years: 29%

65 years: 0%

M. pneumoniae:

  • 0–6 months: 2%
  • 6–12 months: 7%
  • 1–5 years: 27%
  • 6–12 years: 29%
  • 13–18 years: 6%
  • 19–64 years: 22%

65 years: 7%

C. pneumoniae:

  • 0–6 months: 1%
  • 6–12 months: 2%
  • 1–5 years: 51%
  • 6–12 years: 30%
  • 13–18 years: 3%
  • 19–64 years: 13%

65 years: 0%

Paediatric Respiratory Viral Multiplex PCR Data (Ages 0–12)

<1 Year Age Group

January 2024:

  • Rhino/Enterovirus: 35.1%
  • Rhinovirus: 27.4%
  • RSV: 5.8%
  • Parainfluenza 1-4: 8.8%
  • Adenovirus: 8.7%
  • SARS-CoV-2: 1.2%
  • Influenza A: 5.3%
  • Influenza B: 1.8%

February 2024:

  • Rhino/Enterovirus: 42.2%
  • Rhinovirus: 34.3%
  • RSV: 18.3%
  • Parainfluenza 1-4: 11.9%
  • Adenovirus: 6.6%
  • SARS-CoV-2: 1.2%
  • Influenza A: 5.7%
  • Influenza B: 1.3%

1–5 Year Age Group

January 2024:

  • Rhino/Enterovirus: 44.3%
  • Rhinovirus: 37.5%
  • RSV: 4.6%
  • Parainfluenza 1-4: 9.7%
  • Adenovirus: 13.3%
  • SARS-CoV-2: 1.4%
  • Influenza A: 4.6%
  • Influenza B: 5.8%

February 2024:

  • Rhino/Enterovirus: 55.5%
  • Rhinovirus: 47.8%
  • RSV: 14.4%
  • Parainfluenza 1-4: 17.9%
  • Adenovirus: 8.0%
  • SARS-CoV-2: 1.7%
  • Influenza A: 6.7%
  • Influenza B: 2.4%

6–12 Year Age Group

January 2024:

  • Rhino/Enterovirus: 33.5%
  • Rhinovirus: 31.3%
  • RSV: 0.6%
  • Parainfluenza 1-4: 1.4%
  • Adenovirus: 4.2%
  • SARS-CoV-2: 0.3%
  • Influenza A: 3.6%
  • Influenza B: 7.8%

February 2024:

  • Rhino/Enterovirus: 43.6%
  • Rhinovirus: 40.1%
  • RSV: 2.5%
  • Parainfluenza 1-4: 5.5%
  • Adenovirus: 2.8%
  • SARS-CoV-2: 0.6%
  • Influenza A: 4.2%
  • Influenza B: 7.6%