"We don't have enough knowledge yet or haven't developed the tools yet to figure it out. So I think that's what's making people frustrated," Karl Jandrey, UC Davis professor of veterinary emergency and critical care, told SFGATE.
"There's a small number of cases popping up in different places all over the country," he said. "People are trying to work together to get some answers, but I think we're still really in the dark as to what it really is and what its origin may be."
[
add
]
[
|
|
...
]