TABLE 1.

Mean observable C. pneumoniae AR-39 foci from two separate focal assays compared to serially diluted input IFU

Assay no.bNo. of observable foci with input IFUa
25.012.56.253.121.56
126.011.05.03.01.0
22.013.07.01.03.0
24.015.010.03.00.0
25.015.06.04.02.0
25.09.06.04.01.0
    Mean ± SEc24.4 ± 0.712.6 ± 1.26.8 ± 0.93.0 ± 0.51.4 ± 0.5
218.012.06.02.01.0
25.011.02.03.00.0
25.015.06.03.04.0
24.011.08.02.01.0
28.013.04.03.04.0
    Mean ± SEc24.0 ± 1.612.4 ± 0.75.2 ± 1.02.6 ± 0.22.0 ± 0.8
  • a Input IFU were calculated as 25 IFU per well, and four twofold serial dilutions were performed to obtain additional concentrations of 12.5, 6.25, 3.12, and 1.56 IFU per well.

  • b Focal assays 1 and 2 consisted of five wells of each final concentration of input IFU.

  • c Mean values (n = 5) ± standard error.