Final answer:
Vaccine stickers indicate the vaccines a pet has received, are used for reaction reporting, and can satisfy county licensing requirements. They are an important part of pet health documentation by providing a record of vaccinations, including for viral diseases.
Step-by-step explanation:
The correct answer to the question “Which of the following is/are true about vaccine stickers?” is D. All of the above. Vaccine stickers serve multiple functions. A, They identify what vaccines the pet received, which is crucial for keeping vaccination records up to date. B, They can be used for reaction reporting in case the pet has an adverse reaction to the vaccine, which is important for monitoring vaccine safety. C, They can also be used to meet county licensing requirements, as proof of vaccination may be necessary for licensing a pet in certain areas. Vaccines are key in preventing diseases in pets and may include viral diseases like measles, mumps, rubella (MMR), polio, tuberculosis, hepatitis, pneumonia, influenza, and rabies.