ANXA1 and infection: Following AnxA1 (50 μg/kg) or vehicle administration (i.v.)prior to S. suis intracisternal inoculation in WT and Fpr2−/− mice, the astrocyte or microglial density at 14 h after infection was determined via immunohistochemistry using antibodies targeting the astrocyte marker GFAP and microglia marker Iba-1.