patient zero
US /ˌpeɪ.ʃənt ˈzɪr.oʊ/
UK /ˌpeɪ.ʃənt ˈzɪr.oʊ/

1.
pesakit sifar, kes indeks
the first person to be identified as carrying an infectious disease in an outbreak of a disease
:
•
Scientists are still trying to identify patient zero in the recent epidemic.
Saintis masih cuba mengenal pasti pesakit sifar dalam wabak baru-baru ini.
•
Understanding patient zero can help trace the spread of a virus.
Memahami pesakit sifar boleh membantu mengesan penyebaran virus.