Addendum: Cillóniz, C.; Dominedò, C.; Nicolini, A.; Torres, A. PES Pathogens in Severe Community-Acquired Pneumonia. Microorganisms 2019, 7, 49

In the article recently published in Microorganisms [1], there was a mistake in the text about PES score and in Table 3 (“PES score”). The authors apologize for this error.

The correct text and

Table 3. PES score. Adapted from Reference [31].

Score to PES Pathogen	Points
Age <40 years	0
Age 40–65 years	1
Age >65 years	2
Male sex	1
Previous antibiotic use	2
Chronic respiratory disorder	2
Chronic renal failure	3
At Emergency
Consciousness impairment or aspiration evidence	2
Fever or shivers	−1

PES (Pseudomonas aeruginosa, extended-spectrum β-lactamase-positive Enterobacteriaceae, and methicillin-resistant Staphylococcus aureus). Low risk, MDR score: ≤1; medium risk, MDR score: 2–4; high risk, MDR score: ≥5.

are provided below:

In 2015, Prina et al. [31] proposed the PES score, based on the three most frequent pathogens outside the core microorganisms of CAP (e.g., P. aeruginosa, extended-spectrum β-lactamase-positive Enterobacteriaceae, and methicillin-resistant S. aureus). The following elements were included: 0 point for age <40 years; 1 point each for age 40–65 years and male sex; 2 points each for age >65 years, previous antibiotic use, chronic respiratory disorder, and impaired consciousness; 3 points for chronic renal failure; and minus 1 point if fever was present initially. The thresholds ≤1 point, 2–4 points, and ≥ 5 points indicated low, medium, and high risk of PES pathogens, respectively (Table 3).