Table 1.
Country | MTBDRplus/month | MTBDRplus use | MTBDRplus sample type | MTBDRsl/month | MTBDRsl use | MTBDRsl sample type | Other LPAs | Thermocycler manufacturer | Thermocycler | Ramp rate (°C/s) | Customisable ramp rate | Pre-screening Xpert MTB/RIF |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Africa [14 laboratories; median (IQR) of 46 (20–241) MTBDR plus assays per month] | ||||||||||||
South Africa | 900 | Diagnosis | Smear-positive, smear-negative, isolates | 50 | Diagnosis | Smear-positive, smear-negative, isolates | N/A | Applied Biosystems | SimpliAmp | 4.0 | Yes | Yes |
Swaziland | 350 | Diagnosis, research | Smear-positive, isolates | 0 | Diagnosis, research | Smear-positive, isolates | N/A | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
South Africa | 245 | Diagnosis | Smear-positive, isolates | 0 | Diagnosis | Smear-positive, isolates | CM/AS | Applied Biosystems | ABI | 4.0 | Yes | Yes |
Kenya | 240 | Diagnosis, research | Smear-positive, smear-negative | 0 | Research | Smear-positive | CM/AS | Applied Biosystems | GeneAmp 9700 | 2.3 | Yes | Yes |
South Africa | 150 | Diagnosis, research | Isolates | 15 | Diagnosis | Isolates | N/A | Applied Biosystems | ABI | 6.0 | Yes | Yes |
Ethiopia | 75 | Diagnosis, research | Smear-positive, isolates | 60 | Diagnosis, research | Smear-positive, smear-negative, isolates | CM/AS | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
South Africa | 50 | Diagnosis | Smear-positive, smear-negative, isolates | 45 | Diagnosis | Smear-positive, smear-negative, isolates | CM | Applied Biosystems | Proflex PCR system | 4.0 | Yes | No |
Nigeria | 42 | Diagnosis, research | Smear-positive, smear-negative, isolates | 27 | Diagnosis, research | Smear-positive, smear-negative, isolates | CM/AS | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
South Africa | 40 | Diagnosis, research | Isolates | 0 | Diagnosis, research | Isolates | CM | Applied Diagnosis | Various | 4.0 | Yes | Yes |
Nigeria | 25 | Diagnosis | Smear-positive, smear-negative, isolates | 35 | Diagnosis | Smear-positive, smear-negative, isolates | CM | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | Yes |
Cameroon | 20 | Diagnosis, research | Smear-positive, smear-negative | 20 | Diagnosis, research | Smear-positive, smear negative | CM/AS | Applied Biosystems | GeneAmp 9700 | 2.2 | Yes | Yes |
Botswana | 20 | Diagnosis, research | Smear-positive, isolates | 20 | Diagnosis, research | Smear-positive, isolates | CM | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | No |
South Africa | 20 | Diagnosis, research | Smear-positive, smear-negative, isolates | 0 | Diagnosis, research | Smear-positive, smear-negative, isolates | CM | Bio-Rad | Various | 4.0 | No | No |
Côte d’Ivoire | 14 | Diagnosis, research | Smear-positive, isolates | 4 | Diagnosis, research | Smear-positive, isolates | N/A | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
Asia [7 laboratories; median (IQR) of 150 (15–256) MTBDR plus assays per month] | ||||||||||||
Azerbaijan | 750 | Diagnosis, research | Smear-positive, isolates | 0 | Diagnosis, research | Smear-positive, isolates | N/A | Unknown | Unknown | 12.0 | No | Yes |
Kyrgyzstan | 256 | Diagnosis | Smear-positive, smear-negative, isolates | 37 | Diagnosis | Smear-positive | N/A | Biometra | Tprofessional | 3.0 | Yes | Yes |
Bangladesh | 150 | Diagnosis | Smear-positive, smear-negative, isolates | 120 | Diagnosis | Smear-positive, smear-negative, isolates | N/A | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
India | 150 | Diagnosis | Smear-positive, smear-negative, isolates | 0 | Diagnosis | Smear-positive, isolates | CM | Bio-Rad | Thermal Cycler T100 | 4.0 | No | No |
Pakistan | 30 | Diagnosis, research | Smear-positive, smear-negative, isolates | 2 | Research | Isolates | CM/AS | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | Yes |
Myanmar | 15 | Diagnosis | Smear-positive, smear-negative, isolates | 10 | Diagnosis | Smear-positive, smear-negative, isolates | N/A | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
Thailand | 5 | Diagnosis | Smear-positive, smear-negative | 0 | Research | Isolates | N/A | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | No |
Europe [10 laboratories; median (IQR) of 35 (23–64) MTBDR plus assays per month] | ||||||||||||
Denmark | 90 | Diagnosis, research | Smear-positive, smear-negative, isolates | 5 | Diagnosis, research | Smear-positive, isolates | CM/AS | Applied Biosystems | SimpliAmp | 4.0 | Yes | No |
Belarus | 75 | Diagnosis | Smear-positive, smear-negative, isolates | 80 | Diagnosis | Smear-positive, smear-negative, isolates | CM/AS | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
Moldova | 60 | Diagnosis, research | Smear-positive, smear-negative, isolates | 24 | Diagnosis, research | Smear-positive, smear-negative | N/A | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | Yes |
Belgium | 50 | Diagnosis, research | Smear-positive, isolates | 30 | Diagnosis, research | Smear-positive, isolates | Nipro | Biometra | Tprofessional | 3.0 | Yes | Yes |
Belarus | 40 | Diagnosis | Smear-positive, isolates | 0 | Diagnosis | Smear-positive, isolates | CM | Applied Biosystems | 2720 Thermal Cycler | 2.7 | No | Yes |
Germany | 30 | Diagnosis | Smear-positive, smear-negative, isolates | 10 | Diagnosis | Smear-positive, smear-negative, isolates | N/A | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | Yes |
Denmark | 25 | Diagnosis, research | Smear-positive, smear-negative, isolates | 4 | Diagnosis, research | Smear-positive, smear-negative, isolates | CM/AS | Applied Biosystems | SimpliAmp | 4.0 | Yes | No |
France | 25 | Diagnosis | Smear-positive, smear-negative, isolates | 17 | Diagnosis | Smear-positive, smear-negative, isolates | CM/AS, NTM-DR | Bio-Rad | Various | 4.0 | Yes | No |
Italy | 15 | Diagnosis, isolates | Smear-positive, isolates | 15 | Diagnosis, research | Smear-positive, isolate | N/A | Hain Lifescience | GTQ-cycler 96 | 2.2 | Yes | No |
Spain | 10 | Diagnosis | Smear-positive, smear-negative, isolates | 2 | Diagnosis | Smear-positive, smear-negative, isolates | Inno-Lipa | Applied Biosystems | Various | 4.0 | Yes | No |
South America (1 laboratory; 20 MTBDR plus assays per month) | ||||||||||||
Brazil | 20 | Diagnosis, research | Smear-positive, smear-negative, isolates | 0 | Diagnosis, research | Smear-positive, smear-negative, isolates | MOTT ID | Bio-Rad | C1000 Touch | 5.0 | Yes | Yes |
Overall [32 laboratories; median (IQR) of 41 (20–150) MTBDR plus assays per month] | ||||||||||||
3987 | 632 | 16/32 respondents test smear-negative specimens and are hence likely affected by incorrect ramp rate usage | 7/32 used the correct ramp rate | 20/32 have a customisable ramp rate | 22/32 use Xpert as a pre-screen |
LPA - Line probe assay; HCV – HCV Genotype 2.0 Assay (LiPA); CM-Genotype Mycobacterium CM Ver 2.0; NTM-DR – GenoType NTM-DR Ver 1.0;
AS - Genotype Mycobacterium AS Ver 1.0; IQR - Interquartile Range; Xpert – Xpert MTB/RIF assay.
Survey questions are in the supplement. Text in bold refers to laboratories using the manufacturer-recommended ramp rate.