Some physicians prefer to stick with invasive mechanical ventilation when available because this technique limits the diffusion of aerosol particles compared to a high-flow nasal cannula. Severe cases are more common in older adults (those over 60, and especially those over 80).
Baadhi ya madaktari hupendelea kutumia mitambo ya kuingiza hewa inapopatikana kwa sababu mbinu hii hupunguza chembe za uoevu ikilinganishwa na kifaa cha kuingiza hewa kwa kiwango cha juu. Matukio kali ni ya kawaida kwa wazee (wale zaidi ya umri wa miaka 60, na haswa wale zaidi ya umri wa miaka 80).