Table 2

Results of microbiological tests (n = 164) in all patients with Legionella CAP (n = 82).

Established by \Etiologic Diagnosis

L. pn 1a

(n = 57)

L. pnb & L.

spp.c

(n = 13)

L. spp

(n = 12)


Urinary antigen testing (n = 72)

Positive (n = 59)

50

9

0

Negative (n = 13)

1

4

8


Respiratory specimen

culture (n = 54)

Positive (n = 23)

14

8

1

Negative (n = 31)

19

5

7


Respiratory specimen

PCRd (n = 38)

Positive (n = 34)

10

13

11

Negative (n = 4)

4

0

0


a L. pn 1, b L. pn and c L. spp. denote Legionella pneumophila serogroup 1, Legionella pneumophila and Legionella species; d PCR denotes polymerase chain-reaction, respectively.

The goldstandard for diagnosis of Legionella CAP was the clinical diagnosis of a community-acquired pneumonia with an infiltrate on chest X-ray and at least one positive microbiological test for Legionella (urinary antigen testing, culture results from respiratory specimen or PCR from respiratory specimen).

Fiumefreddo et al. BMC Pulmonary Medicine 2009 9:4   doi:10.1186/1471-2466-9-4

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