Pneumonia complications and risks of late diagnosis

Pneumonia poses risks to vulnerable populations such as older adults, infants, and those with weakened immune systems. Risk factors include smoking, respiratory diseases, and environmental pollutants. Symptoms include cough, fever, breathlessness, and chest pain. Complications can include lung abscesses, pleural effusion, respiratory failure, renal failure, meningitis, encephalitis, bacteremia, and sepsis. Early diagnosis, treatment, and vaccination are crucial in prevention.