The vagaries of the COVID-19 market and the uncertainties of pandemic fatigue are hitting some biopharma companies in the pocketbook, at least for now. Due to lower-than-expected revenues from its COVID-19 Comirnaty vaccine and antiviral Paxlovid (nirmatrelvir/ritonavir), Pfizer Inc. reduced its 2023 revenue guidance by $9 billion after hours Oct. 13, saying it now anticipates full-year 2023 revenues to range from $58 billion to $61 billion – down from its previous guidance range of $67 billion to $70 billion.