Keep Your Parrot's Cage Clean!This is probably common sense to most people, but it's still worth noting that allowing your parrot to live in a dirty cage increases the likelihood of them catching an infectious disease. Try to get into the habit of cleaning your parrot's cage once a day, dumping the tray and scrubbing it down with a safe, all-natural cleaning solution.
Feed Your Parrot a Balanced Diet
Another important step to help protect your parrot from infectious disease is to feed them a well-balanced diet. It's a common assumption that seed mix offers all of the vitamins and nutrients parrots need, but this usually isn't the case. Seeds often lack vital nutrients that impact the immune system, so try to incorporate some pellets and fresh foods into your parrot's diet as well.
Whether you're parrot has shown symptom of an infectious disease or not, it's always a good idea to have them checked by the veterinarian once in a while. A professional veterinarian will inspect your parrot for signs of illness, deficiency, and overall health. And catching any health-related problems early will drastically increase the chance of a positive outcome. Just remember to choose a veterinarian who's experienced in dealing with parrots and birds (not all vets have this experience).
Limit Exposure To Other Birds
Arguably, the single most important step in protecting a pet parrot from infectious diseases is to keep them away from other birds. More specifically, owners should never exposure their parrot to another bird that hasn't been tested for Psittacosis in the last 45 days. Pigeons and wild birds are the most common carriers of this disease, but pet parrots like African Grays and Parakeets have also been known to carry it.
Keep Your Parrot Happy
You might be surprised to learn that a parrot's emotional health is directly linked to their physical health. Neglecting the emotional needs of your parrot may increase their risk of catching an infectious disease, so make it a point to show them love and attention on a daily basis.