SARS-CoV-2 and the nose: Risks and implications for primary care.

Area of Science:

• Virology
• Infectious Diseases
• Public Health

Background:

• General Practitioners (GPs) exhibit elevated COVID-19 mortality rates among healthcare workers.
• Specific characteristics of SARS-CoV-2 contribute to the heightened risk faced by GPs.
• Nose-related viral properties of SARS-CoV-2 are a key concern for primary care physicians.

Purpose of the Study:

• To examine the nose-related features of SARS-CoV-2 that increase risk for GPs.
• To propose safety and protection recommendations for primary healthcare physicians.
• To highlight the importance of upper respiratory tract considerations in COVID-19 transmission.

Main Methods:

• Literature review and analysis of SARS-CoV-2 properties.
• Discussion of viral load distribution and shedding patterns.
• Evaluation of clinical indicators for early COVID-19 detection.

Main Results:

• The highest SARS-CoV-2 viral load is concentrated in the nose and nasopharynx, often preceding symptom onset.
• Nasopharyngeal shedding of SARS-CoV-2 can persist long after clearance from the lower respiratory tract.
• New-onset hyposmia and dysgeusia are significant indicators for COVID-19.

Conclusions:

• Physicians performing upper respiratory tract procedures are at significant risk of COVID-19 exposure.
• Screening protocols should incorporate olfactory and gustatory dysfunction assessments.
• Enhanced protective measures are crucial for GPs managing patients with potential SARS-CoV-2 infection.