Both public users and registered can search SCD strain records. Registered
users may have access to all strain records while public users can search
published strain records.
There are three different search pages designed for different users:
Keyword search -- User types in word(s) or phrase(s) then clicks search
button, all records have related keywords will be retrieved.
By Category -- If user knows exactly the Genus/Species/Subspecies of
a strain, this might be the correct search page.
By Fields -- If keyword search returns too many records and user has
some knowledge of the database table columns, he/she can use this page
to search only the necessary table column(s)
