Table 5

Sensitivity of direct ZN, concentrated FM and Magnetic bead-FM, as a function of reading time

Reading time

Cumulative No. positive

slides

New positive

slides

Yield of new positives/total

positives* (%)


Direct ZN


30 s

4

4

66.7%


1 min

4

0

0%


3 min

4

0

0%


5 min

6

2

33.3%


Concentrated FM


30 s

12

12

63.2%


1 min

14

2

10.5%


3 min

19

5

26.3%


5 min

19

0

0%


Magnetic bead


30 s

6

6

35.3%


1 min

11

5

29.4%


3 min

13

2

10.5%


5 min

17

4

23.5%


*total number of slides positive by each method after 5 minutes examination time.

Albert et al. BMC Infectious Diseases 2011 11:125   doi:10.1186/1471-2334-11-125

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