Hello there, Pseudomonas aeroginosa is a different organism in the fact that it has the ability to form a biofilm. What it does is, attach to your throat then forms a slimy layer around itself which prevent the body from destroying it and then intermittently attack the throat epithelia layers. So you would have on and off fever alongwith a persistent sore throat over a period of time. Now that the doctors have established what it is sensitive to the antibiotic would take care of it. It is a organism present in the environment and ocassionally infects us. So you do not have to worry whether you were singled out or you did something wrong. Thank you for your query. Dr Arun A