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. 2002 Jul;76(14):6882–6892. doi: 10.1128/JVI.76.14.6882-6892.2002

TABLE 6.

Virological, serological, and immunological markers of infection in vaccinated and mock-immunized cats after FIV challenge

Cat group and no.a Presence of marker at indicated time after first challengeb
Cats with productive infection (no. of cats positive/total no. of cats) at:
1 mo
3 mo
6 mo
6 mo after first challenge 3 mo after second challenge
VI PCR S CD4 VI PCR S CD4 VI PCR S CD4
FCPLB 3/5 2/2
    2664 + + + + + + + + +
    2668 + + + + + + + + + + + +
    2669
    2674
    2675 + + + + + + + + + +
ID-1 2/5 3/3
    2618 + + + + + + +
    2619 + + + + + + + + + + +
    2620
    2624
    2626
ID-2 2/5 3/3
    2627
    2628
    2631
    2632 + + + + + + + + + + +
    2633 + + + + + + + + + + +
ID-3 1/5 4/4
    2635 + + + + + +
    2637
    2638
    2640
    2641
Mock-1 0/4 4/4
    2599
    2607
    2612
    2614
Mock-2 1/5 4/4
    2646
    2647 + + + + + + + + + +
    2651
    2658
    2659
a

All animals were virus isolation and PCR negative at the time of challenge.

b

VI (+ and −), positive and negative virus isolation by coculture with MBM cells, respectively; PCR (+ and −), positive and negative TM-PCR for proviral FIV gag sequences in PBMC, respectively; S (+ and −), ELISA antibody titer at least fourfold higher than and not significantly different from the time-of-challenge level, respectively; CD4 (+ and −), CD4+ T-lymphocyte count reduced by ≥50% and not significantly different from the time-of-challenge level, respectively.