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Table 5 The results of repeat donors with low level viral load who were repeat positive in the follow up stud

From: Characteristic of HBV nucleic acid amplification testing yields from blood donors in China

Donors Donation date* Donation type Age Gender Times of Follow-up NAT result groups Method for NAT test Alt NAT# HBV-DNA (VLs, IU/mL) Serological marker positive
BD1 X October 5, 2011 PLT 49 (1970) Female 30 Non-repeated positive ULTRIO / Neg Anti-HBc
X + 21 July 2, 2013 FS Non-repeated positive ULTRIO /
X + 73 October 12, 2017 FS Non-repeated positive ELITE /
X + 80 May 4, 2018 FS Neg ELITE Pos
BD2 X December 10, 2012 PLT 45 (1974) Female 9 Non-repeated positive ULTRIO / Neg Anti-HBc
X + 39 March 2, 2016 FS Non-repeated positive PLUS /
X + 67 June 11, 2018 FS Neg ELITE Pos
BD3 X April 19, 2011 PLT 62 (1957) Male 49 Non-repeated positive ULTRIO / Neg Anti-HBc and anti-HBs
X + 3 July 16, 2011 FS Non-repeated positive ULTRIO /
X + 21 January 27, 2013 FS Non-repeated positive ULTRIO /
X + 44 December 20, 2014 FS Non-repeated positive ULTRIO /
BD4 X June 3, 2011 WB 55 (1964) Male 6 Non-repeated positive ULTRIO / Neg Anti-HBc and anti-HBs
X + 16 October 16, 2012 FS Non-repeated positive ULTRIO /
X + 38 August 9, 2014 FS Non-repeated positive ULTRIO /
BD5 X September 28, 2011 PLT 41 (1978) Male 8 Non-repeated positive ULTRIO / Neg Anti-HBc and anti-HBs
X + 1 December 2, 2011 FS Non-repeated positive ULTRIO /
X + 7 May 15, 2012 FS Non-repeated positive ULTRIO /
BD6 X May 19, 2011 PLT 52 (1967) Male 97 Non-repeated positive ULTRIO / Neg Anti-HBc and anti-HBe
X + 23 March 26, 2013 FS Non-repeated positive ULTRIO /
X + 70 February 22, 2017 FS Non-repeated positive ELITE /
X + 73 June 1, 2017 FS Neg ELITE Pos
BD7 X November 20, 2011 PLT 51 (1968) Female 77 Non-repeated positive ULTRIO / Neg Anti-HBc, anti-HBs and anti-HBe
X + 21 July 25, 2013 FS Non-repeated positive ULTRIO /
X + 56 July 3, 2016 FS Non-repeated positive PLUS /
X + 72 November 2, 2017 FS Non-repeated positive ELITE /
BD8 X September 18, 2010 PLT 43 (1976) Male 5 HBV-DNA positive ULTRIO /  < 12 Anti-HBc
X + 1 October 30, 2010 FS HBV-DNA positive ULTRIO / Neg
X + 6 March 11, 2011 FS HBV-DNA positive ULTRIO / 17.8
  1. *Months from index donation; #alternative NAT by using TaqMan PCR method, Roche
  2. VLs, viral loads; BD, blood donor; WB, whole blood; PLT, platelet; FS, follow-up sample; /, not applicable; Neg, negative; Pos, positive; ULTRIO, Procleix® Ultrio® assay; PLUS, Procleix® Ultrio Plus® assay; ELITE, Procleix® Ultrio Elite® Assay