I've been spending time with backpackers in a hostel and have started to itch. How do I know if its bed bugs or scabies? Itchy feet hands body

Compare. Bed bug bites may have no sx's/signs except for 2 small skin puncture points. A reaction may show from an hr to several days later. It can cause itchy, pink, swollen, lesions w clear center. If hypersensitive blisters may occur. Telltale sign is linear track of lesions from sequential feedings – doesn't always occur. Bites are in areas exposed while sleeping-arms, shoulders, neck ; legs. Scabies.