Key result
At 5.5 weeks of age, 74% of pigs were infected with sapovirus, but by 15-18 weeks all had cleared their initial infection, with 25% acquiring a new strain, suggesting genogroup-specific immunity.
Authors
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Initial sapovirus infections clear by 15–18 weeks without homologous GIII reinfection; hypothesis-generating for genogroup-specific immunity, needing prospective validation.
Observational (n=51)
No
Absolute Event Rate: 74% vs 25%
Lauritsen et al. (2015) conducted an observational in Natural sapovirus infection (n=51). Natural sapovirus infection was evaluated on Presence of sapovirus in faecal samples. At 5.5 weeks of age, 74% of pigs were infected with sapovirus, but by 15-18 weeks all had cleared their initial infection, with 25% acquiring a new strain, suggesting genogroup-specific immunity.
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