PCR diagnosis
Negative group
Time of mortality (P.I)
28 h
30 h
36 h
44 h
45 h
Single step PCR (1s5 - 1a16 primers)
-
+
Single step PCR (IK1 - IK2 primers)
Nested PCR
(IK1-IK2 → IK3 - IK4 primers)