Indian Journal of Pathology and Microbiology
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Year : 2017  |  Volume : 60  |  Issue : 3  |  Page : 313-318

Nucleic acid amplification testing in Indian blood banks: A review with perspectives

Surat Raktadan Kendra and Research Centre, Surat, Gujarat, India

Correspondence Address:
Kanjaksha Ghosh
Surat Raktadan Kendra and Research Centre, 1st Floor, Udhana-Khatodara Urban Research Centre, Udhana - Magdalla Road, Near Chosath Joganio Mata Mandir, Surat - 395 002, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/IJPM.IJPM_361_16

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Background: Nucleic acid amplification testing (NAT) is restricted to a few blood banks in India since 2008. This review was directed toward understanding NAT yield in different parts of the country and prevalence in the NAT of different types of virus. Materials and Methods: English literature was searched from 1990 to 2016 in PubMed, Scopus, Ind med, and Google database using properly constructed key words. Literature was collected and finally the data were synthesized. Results: NAT results from 11 publications and one personal communication showed that till date 389387 blood units have been NAT tested from various parts of the country. NAT yield varied from 1:476 to 1:4403 in various studies. Till date, 58/2550 (2%) blood banks of India are doing NAT testing but all of them have not published their results. Majority of the centers have used ID-NAT (Individual NAT) protocol and 21 blood banks are using minipool format of the test. One center has used in-house NAT testing system. In >70% of the time, the NAT positivity with due to hepatitis B (Hep B). For individual infection, NAT yield from the pooled data showed HIV in 1:66,000, Hep C virus 1:5484 and Hep B in 1:1761 seronegative donors. Discussion and Conclusion: In view of the very high NAT yield (1:1361), NAT in some from needs to be universally applied in Indian blood banks. However, the high Hep B occult infection suggests stricter donor selection and immunization of adults for Hep B may be way forward toward ensuring the viral safety of blood components in India.

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