A deficiency of one or more of these minerals can leave you prone to cramps. These minerals include magnesium, sodium, potassium and calcium. Intense sweating, diarrhoea and vomiting are the most common ways of developing a sudden, acute deficiency in these minerals.
Germs called bacteria, viruses, and fungi may cause pneumonia. In adults, bacteria are the most common cause of pneumonia. Ways you can get pneumonia include: Bacteria and viruses living in your nose, sinuses, or mouth may spread to your lungs.
Knowledge center. Pneumonia is an infection of the lungs that is caused by bacteria, viruses, fungi, or parasites. It is characterized primarily by inflammation of the alveoli in the lungs or by alveoli that are filled with fluid (alveoli are microscopic sacs in the lungs that absorb oxygen).acteria and viruses are the primary causes of pneumonia. When a person breathes pneumonia-causing germs into his lungs and his body's immune system cannot otherwise prevent entry, the organisms settle in small air sacs called alveoli and continue multiplying.