On the another hand, the TLR9−/− mice displayed a transient increased peak in footpad swelling (Fig. 1A–B) that correlated with a transient increased in parasitemia at 4 weeks post infection (Fig. 1), and this after being infected either with L.g. LRVlow or L.g. LRVhigh parasites. This evidence concerns the gene TLR9 and parasitic infectious disease.