18
Oral thrush, also known as oral candidiasis, is a common
18
Oral cancer is a serious disease that affects thousands
18
Optic Neuritis is a condition that affects the optic
20
Onchocerciasis, also known as river blindness, is a
22
Oculopharyngeal muscular dystrophy (OPMD) is a rare
23
Oculocutaneous albinism is a rare genetic disorder
23
Ochronosis is a rare but serious condition that affects
23
Obesity is a growing concern worldwide, affecting millions
27
Norovirus infection, also known as the stomach flu
27
Nipah virus infection is a highly contagious disease