Question

which is a symptom that is common in people with sickle cell disease?
mood disturbances
fragile bones
stooped posture
frequent infections

Explanation:

Sickle cell disease affects red blood cells, which play a role in the immune system. People with sickle cell disease have abnormal red blood cells that can cause issues with the spleen (an organ important for fighting infections). The spleen may not function properly in those with sickle cell disease, leading to a weakened immune response and thus frequent infections. Mood disturbances are more related to mental health conditions (not directly a core symptom of sickle cell), fragile bones are more associated with conditions like osteoporosis, and stooped posture can be due to various musculoskeletal or neurological issues not specific to sickle cell.

Answer:

frequent infections