A medical condition where the curve is usually S-shaped or C-shaped.

scoliosis.

Explanation:

A person with scoliosis has a curve to their spine. The curve in the spine is often S-shaped or C-shaped.

osha website is the answer

if you think your dog may have been exposed to a toxin, the best thing to do is to check the label of the item you think your pet ingested. read the information about toxicity. often, but not always, the information on packaging regarding children is relevant to dogs and some manufacturers even discuss dog toxicity. if there is an 800 number on the package – call them! it’s also recommended that you call your veterinarian to confirm the recommendations. if you go to your veterinarian, take all packaging and any information you have on the product.