- agranulocytosis [DOID:12987]
A leukopenia that is characterized by a severe lack of of granulocytes with a drop in granulocyte concentration below 200 cells/mm of blood.
- Mobius syndrome [DOID:13501]
A facial nerve disease characterized by congenital, uni- or bilateral, non-progressive facial weakness and limited abduction of the eye(s).
- refractive amblyopia [DOID:10377]
An amblyopia that is characterized by refractive error in one or both eyes that is not corrected early in childhood resulting in poor development of the visual function in the affected eye(s).
- acquired immunodeficiency syndrome [DOID:635]
A Human immunodeficiency virus infectious disease that results_in reduction in the numbers of CD4-bearing helper T cells below 200 per microliter of blood or 14% of all lymphocytes thereby rendering the subject highly vulnerable to life-threatening infections and cancers, has_material_basis_in Human immunodeficiency virus 1 or has_material_basis_in Human immunodeficiency virus 2, which are transmitted_by sexual contact, transmitted_by transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk, transmitted_by congenital method, and transmitted_by contaminated needles. Opportunistic infections are common in people with AIDS.
- sickle cell anemia [DOID:10923]
A blood protein disease that is characterized by low number of red blood cells, repeated infections, and periodic episodes of pain, resulting from atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle, or crescent, shape.
- scarlet fever [DOID:8596]
An upper respiratory tract disease described as an acute contagious disease caused by Group A bacteria of the genus Streptococcus (especially various strains of S. pyogenes) and characterized by inflammation of the nose, throat, and mouth, generalized toxemia, and a red rash.
- Ritter's disease [DOID:9063]
A commensal bacterial infectious disease that is characterized by widespread erythema, peeling, and necrosis of the skin, that is caused by a toxin produced by a bacterium of the genus Staphylococcus (S. aureus). The infection has_symptom redness of skin, has_symptom fluid-filled blister formation, has_symptom fever and has_symptom irritability.