In-flight Chicken Sandwich Illness - Airlines, Doha Doha

Doha, Doha, Qatar

On 25 July 2021, I travelled from Sweden to Kigali departing 25 July and arriving 26 July. I ate a chicken sandwich on a flight, Boeing 787-8 departing from Doha to Kigali and made me very ill. I even asked some of the travellers how they felt after eating that sandwich and they said they were in stomach pain. My stomach was painful with gas 2 days after the flight. Has anyone else reported that? | Symptoms: Nausea, Diarrhea, Stomach Pain, Gas