Section 18: The scientific names of the causative organisms associated with diseases of honey bees.

Ive looked through several sources to find the scientific names for the above and notice that the diseases I can't find a scientific name for are the viruses. Is this right or am I missing something? (I'm certainly hoping not-that would mean even more to learn)
I thought section 18 would be a good place to start as it gives me time to practise spelling these long, overly complicated, many unpronounceable names.