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Table 1 Compared sensitivity of Giemsa-stained thin blood smears and nested PCR for B. microti infection in BALB/C mice during 9 months (+, positive; -, negative)

From: Screening for biomarkers reflecting the progression of Babesia microti infection

dpi Microscopy (No. positive/No. tested) Nested PCR (No. positive/No. tested)
0 - (0/10) - (0/10)
3 + (10/10) + (10/10)
7 + (10/10) + (10/10)
14 + (10/10) + (10/10)
21 + (7/10) + (10/10)
30 + (2/10) + (10/10)
60 + (1/10) + (9/9)a
120 - (0/10) + (1/10)
150b - (0/9) - (0/9)
270c - (0/6) - (0/6)
  1. Abbreviation: dpi days post-infection
  2. aOne sample was unavailable for PCR detection
  3. bNine mice alive on 150 dpi
  4. cSix mice alive on 270 dpi