At Chernobyl, People Are Advised To Not Touch The Dogs

If you are keen on visiting Chernobyl and seeing these pups for yourself, be forewarned: visitors to the area are warned not to touch the dogs. Before they go through the decontamination process, they are likely riddled with contamination, which will rub off on people who come into contact with them.
Furthermore, these are stray dogs who are highly susceptible to diseases like rabies and distemper. They may even be aggressive. The rule of basic common sense applies here: approaching a stray dog is always, ALWAYS a bad idea.