TIMM13 and infection: Sows that had coinfections with PCV2/PCV3, PCV2/PPV1, and PCV2/PCV3/PPV1 showed significantly higher (p = 0.04) PCV2 viral loads at the time of delivery (p = 0.04) compared to those where PCV2 was detected in mono-infection or PCV2/PRRSV coinfection (Figure 3A).