Influenza is a respiratory infection that can cause a variety of symptoms, including fever, cough, sore throat, runny nose, and muscle aches.

Pneumonia can lead to a number of complications, including pleural effusion, empyema, lung abscess, and respiratory failure.

UTIs can cause a variety of symptoms, including dysuria (painful urination), frequency (needing to urinate often), urgency (feeling like you need to urinate right away), and cloudy or foul-smelling urine.

Meningitis can lead to a number of complications, including hearing loss, seizures, brain damage, and death.

Gastroenteritis is an inflammation of the stomach and intestines that can cause a variety of symptoms, including nausea, vomiting, diarrhea, and abdominal pain.

Sepsis is a life-threatening condition that can lead to organ failure, shock, and death.

HIV/AIDS can cause a variety of symptoms, including weight loss, fatigue, night sweats, and opportunistic infections.

Tuberculosis can lead to a number of complications, including pulmonary fibrosis, pleural effusion, empyema, and respiratory failure.

Malaria is a mosquito-borne disease that can cause a variety of symptoms, including fever, chills, sweating, and headache.

Dengue fever can lead to a number of complications, including dengue hemorrhagic fever, dengue shock syndrome, and death.

Measles is a highly contagious viral infection that can cause a variety of symptoms, including rash, fever, cough, and runny nose.

Mumps is a viral infection that can cause a variety of complications, including meningitis, encephalitis, orchitis (inflammation of the testicles), and pancreatitis.

Rubella is a viral infection that can cause a variety of symptoms, including rash, fever, swollen lymph nodes, and joint pain.

Chickenpox is a viral infection that can cause a variety of complications, including pneumonia, encephalitis, and bacterial skin infections.

Shingles is a viral infection that can cause a variety of symptoms, including rash, pain, fever, and fatigue.