Virus-free Mastomys coucha were obtained from Janvier Labs (Le Genest-Saint-Isle, France). At the DKFZ Mastomys coucha were housed under specified pathogen-free (SPF) conditions in individually ventilated cages (Tecniplast GR900) at 22+/-2˚C and 55+/-10% relative humidity in a light/dark cycle of 14/10 h. Mastomys were fed with mouse breeding diet and allowed access to water ad libitum. According to the three R rules of animal experimentation, the animals used in this exploratory study were subgroups (n=6 animals per group; groups: PBS, MnPV L1-VLPs, HPV16 RG1-VLPs, CUT-PANHPVAX) of a larger exploratory study also including testing the protective efficacy of an alternative L1 isoform which is published elsewhere (48 (link)).
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