Table 1.

Summary of Toxoplasma Surveillance Testing at Hospital A and B for Transplants Performed During the Post-surveillance Period

Total Recipient Negative /Donor Positive
Recipient Positive
D+/R−D+ or D−/R+
Hospital A
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patientsNumber of testsParasitemia detected (%)
 Conventional96121210/12202080/20
 CD34+ selected PB140111480/11192770/19
 Cord blood +/−CD34+ selected PB3800N/A71321/7 (14%)
 Total27423 (8%)2690/2346 (17%)6171/46 (2.2%)
Total Recipient negative aRecipient positive
R−R+
Hospital B
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patients testedNumber of testsParasitemia detected (%)
 Cord±Haplo- identical CD34 +47357780/35123132/12 (16.7%)*
 Alemtuzumab- TCD PB736012590/60132782/13 (15.4%)**
 Total12095 (79%)20370/9525 (21%)5914/25 (16%)
Total Recipient Negative /Donor Positive
Recipient Positive
D+/R−D+ or D−/R+
Hospital A
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patientsNumber of testsParasitemia detected (%)
 Conventional96121210/12202080/20
 CD34+ selected PB140111480/11192770/19
 Cord blood +/−CD34+ selected PB3800N/A71321/7 (14%)
 Total27423 (8%)2690/2346 (17%)6171/46 (2.2%)
Total Recipient negative aRecipient positive
R−R+
Hospital B
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patients testedNumber of testsParasitemia detected (%)
 Cord±Haplo- identical CD34 +47357780/35123132/12 (16.7%)*
 Alemtuzumab- TCD PB736012590/60132782/13 (15.4%)**
 Total12095 (79%)20370/9525 (21%)5914/25 (16%)

Abbreviations: N/A, not applicable; PB, peripheral blood; TCD, T-cell depleted.

a Includes patients with equivocal titres.

For hospital A routine surveillance was recommended for Toxoplasma seropositive recipients (R+) who underwent TCD PB and cord. Other groups were tested at clinician discretion. For hospital B, all transplants were included in surveillance testing.

* P value =.06, ** P value =.02.

Table 1.

Summary of Toxoplasma Surveillance Testing at Hospital A and B for Transplants Performed During the Post-surveillance Period

Total Recipient Negative /Donor Positive
Recipient Positive
D+/R−D+ or D−/R+
Hospital A
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patientsNumber of testsParasitemia detected (%)
 Conventional96121210/12202080/20
 CD34+ selected PB140111480/11192770/19
 Cord blood +/−CD34+ selected PB3800N/A71321/7 (14%)
 Total27423 (8%)2690/2346 (17%)6171/46 (2.2%)
Total Recipient negative aRecipient positive
R−R+
Hospital B
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patients testedNumber of testsParasitemia detected (%)
 Cord±Haplo- identical CD34 +47357780/35123132/12 (16.7%)*
 Alemtuzumab- TCD PB736012590/60132782/13 (15.4%)**
 Total12095 (79%)20370/9525 (21%)5914/25 (16%)
Total Recipient Negative /Donor Positive
Recipient Positive
D+/R−D+ or D−/R+
Hospital A
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patientsNumber of testsParasitemia detected (%)
 Conventional96121210/12202080/20
 CD34+ selected PB140111480/11192770/19
 Cord blood +/−CD34+ selected PB3800N/A71321/7 (14%)
 Total27423 (8%)2690/2346 (17%)6171/46 (2.2%)
Total Recipient negative aRecipient positive
R−R+
Hospital B
 Transplant typeNumber of patientsNumber of patientsNumber of testsParasitemia detectedNumber of patients testedNumber of testsParasitemia detected (%)
 Cord±Haplo- identical CD34 +47357780/35123132/12 (16.7%)*
 Alemtuzumab- TCD PB736012590/60132782/13 (15.4%)**
 Total12095 (79%)20370/9525 (21%)5914/25 (16%)

Abbreviations: N/A, not applicable; PB, peripheral blood; TCD, T-cell depleted.

a Includes patients with equivocal titres.

For hospital A routine surveillance was recommended for Toxoplasma seropositive recipients (R+) who underwent TCD PB and cord. Other groups were tested at clinician discretion. For hospital B, all transplants were included in surveillance testing.

* P value =.06, ** P value =.02.

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