Teri shows bees suffering from deformed wing virus. This virus is usually a latent virus that normally does not emerge in the bees. High Varroa infestation bring these and other normally hidden virus's to become active.
This is why it is so important to keep Varroa levels as low as possible.
Checking the mite load a good management technique to know where the colony is heading.
Checking mite load with a powder sugar method: