translation.en: After an average incubation period of 12 days, a high fever accompanied by non-specific general symptoms abruptly appeared.
translation.mt: Wara perjodu ta’ inkubazzjoni ta’ medja ta’ 12-il ġurnata, f’daqqa waħda kien jitfaċċa deni għoli akkumpanjat minn sintomi ġenerali mhux speċifiċi.