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.
Back to Top Causes. This type of pneumonia is caused by the fungus Pneumocystis jiroveci. This fungus is common in the environment and does not cause illness in healthy people.However, it can cause a lung infection in people with a weakened immune system due to:1  Cancer.ack to Top Causes. This type of pneumonia is caused by the fungus Pneumocystis jiroveci. This fungus is common in the environment and does not cause illness in healthy people.