I agree with Jennifer about Ross River Fever. Everything I have read says a person is fully recovered after 6 months, a few people may take one to two years to recover. A few people claim they have ongoing depression and fatigue. Certainly nothing that would inhibit a person from abducting a little 3 year old (or working a repair business, helping care for 3 young grandchildren, going to footy practise, swimming).
(eg:
http://healthywa.wa.gov.au/Articles/N_R/Ross-River-virus-and-Barmah-Forest-virus or
http://www.sahealth.sa.gov.au/wps/w...-+including+symptoms+treatment+and+prevention)
As far as age goes, it is interesting to note the ages of all 3 named POIs ...
evidently the police do not agree with your theory. And they are the ones that are using profilers, psychologists, investigators, and the full facts.
Anthony Jones, around 60 years old (at the time)
http://www.news.com.au/national/cou...d/news-story/d9ec79b9a306ce05f01558790c3b5fc4
Paul Bickford, around 68 years old (at the time)
https://seventhvoice.wordpress.com/...y-abusing-young-girl-with-aspergers-syndrome/
Bill Spedding, around 63 years old (at the time)
https://www.smh.com.au/national/wil...sex-offences-in-victoria-20160727-gqf0wo.html
.