So when someone actually goes on a plane, they could be sick and they could actually be in this latency period in which they could actually have the disease but not exhibit any symptoms, and they could, in turn, spread the disease to many other people in the cabin.
Jadi ketika seseorang naik pesawat, dia bisa saja sakit dan dia bisa saja masih berada dalam periode latensi dimana dia sudah terjangkit namun belum menunjukkan gejala, dan karenanya, dapat menyebarkan penyakit itu ke banyak penumpang lain di kabin.