Anyone, of any age, can get pneumonia. It may take a long time for the pneumonia to go away completely, but there should be ongoing improvement, even if it is slow. If the pneumonia does not completely go away or the pneumonia comes back you may have some other lung problem or an immune problem. As long as you do not have a lung or an immune problem, then you should have no more trouble with pneumonia. Also you would not need to take any special precautions.
I'm 63 and found I had pneumonia 30 days ago.
I went through the 10 day Augmentin antibiotic treatment.
I thought I was cured...Wrong.
I feel as bad now as I did when I "had" the pneumonia.
A general feeling of 'yuk' accompanied by 'ringing' ears.
I feel fair 1 day and for 2 or 3 days I can hardly hold a book.
I didn't have 'bad' coughing or sputum problems but this malaise is killing me.