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Health Science Journal ; 16(8):1-4, 2022.
Article in English | ProQuest Central | ID: covidwho-2026686

ABSTRACT

Patients with lung failure could be always easily identified because associated to typical signs and symptoms have anamnestic relevant data (e.g. immunocompromised patients or antivax people or non-responders to vaccines);yet also patients without recent clinical findings of lung failure may be found with interstitial pneumonia that should be investigated with a thorough differential diagnosis including also the research of SARS CoV2 on nasopharyngeal swab or bronchoalveolar lavage. Immunological tests as immunoglobulin's toward SARS CoV2 IG M or IG G have a positive clinical impact only if symptoms are longer than 5-6 days and in non-vaccinated people (in particular IG G). [...]in patients with high suspect of COVID-19radiological imaging of lung is always needed because the specific tropism of SARS CoV2 for respiratory system, in particular for the action of viral spike protein and its link with ACE2 protein present in high concentration on the surface of cells of respiratory tract. [...]these patients may induce clinical misunderstanding in daily clinical practice: they may refer a specific symptoms escaping each type of triage system, they may have a reduced or absent viral load so escaping real Time PCR at NPS and they may show not-extended interstitial pneumonia without recent infection and/or lung failure so inducing all of us to consider a thorough differential diagnosis with other causes of interstitial pneumonia. [...]after the exclusion of connettivitiis (e.g. rheumatoid arthritis, systemic erythematous lupus and so) [30] and hypersensitivity pneumonitis (e.g. drug intolerance, allergy and so on) [31, 32], an evaluation of infective causes should be performed and it should include the microbiological test to identify bacteria, pests or viruses (e.g. mycoplasma, legionellaspp, pneumocystis, influenza virus) [33, 34] and to include also the research of SARS CoV2 with NPS or bronchoalveolar lavage (BAL) with real time PCR (Table 1).

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