I couldn't find the date when it was published. But it's great to see POIS in such a mainstream publication!
It is quite recent, because it cites the content of Dr Waldinger review article of 2016-07, him abandoning desensitization, and stopping any reference to POIS as an allergy, and now describing POIS as "a systemic auto-immune reaction expressing itself in multiple physical and mental problems". So this article has been out somewhere between August and November 2016.
The author seems to have had access to an interview with Waldinger after the review article was out, because he quotes him saying those things in his own words, not in the article's phrasing. Anyway, these comments confirm what I have understood from his review article, and have shared here at
http://poiscenter.com/forums/index.php?topic=2346.msg19538#msg19538 ( up on this thread you will also find the link to Dr Waldinger's July 2016 review article on POIS ).
There seems to be another snippet from this unknown interview when the article says, referring to desens, " Waldinger once tried to treat POIS (in two of the 45 Dutch patients suffering from the condition he’d identified) using a method designed to reduce allergy symptoms —
which he credits with causing the POIS-as-allergy confusion. " ( my emphasis) This sounds like the author have talked directly to Dr Waldinger, and that Dr Waldinger has somehow admitted that he is responsible for the inappropriate and limiting use of the word "allergy" when referring to POIS, and that it should have been described from the start as a complex immune reaction, or a auto-immune overreaction. By using desens to treat POIS, a method used to treat strictly allergic reactions, he have caused the confusion. As I have already wrote, auto-immune diseases are not treated with desensitization, so the change in his view on POIS have called for a change in therapeutic strategy.
So now that he clearly sees POIS as a auto-immune reaction, he must be searching for the antigen, the substance that causes the immune reaction, and eventually, the main markers that go up at the start of this overreaction. If you can identify the first pro-inflammatory immune messengers to go wild, you will try to stop them at the very start, and then prevent the immune fire to spread everywhere in the body. Auto-immune diseases manifest are flaring disorders, and in the case of POIS, you will have a flare each time you ejaculate.
A flare is more than just an allergic reaction, because it can go on long after the exposition to the allergenic substance is over, and new symptoms appear long after the start of the attack. If you are allergic to cats, and you react to the presence of a cat, you will leave, go home, take an antihistamine, and the symptoms will slowly subside - no way you're going to be bed-ridden for a week and develop all sorts of systemic symptoms in the coming days - this type of complications is what happens with an auto-immune flare up, and that sounds a lot like what POIS is.Let's hope Dr Waldinger finds the antigen and a few immune markers as well in his current study.