@zande poisoning vs the discovery of a new disease favors poison. warfarin[rat poison]is no longer the most common 'blood thinner' but it has a distinctive 'coagulation panel' the rest are prescription medications. this sounds like multiple exposures.
try this -species identification occurs in the week after the eyes open and being nuzzled by the bitch may have been missing. substitute your face several times per day nose rub and breath on its face eye to eye the reflex nose lick may still be present it will go away when the fixation period is over- fixed for life... why is this dog humping my leg? domestic dogs do not develop on a normal mammal time scale and this period may get extended into puppyhood[neotenic behavior] in these wolves. basenjis develop 'normally 'like other canids. barking for instance is a normal canid puppy behavior and basenjis do it too until they are 'too old'. long distance calling [yodeling] is heard in adult wolves in the wild usually at dawn and dusk.