If you contract a contagious illness by coming in contact with infected blood, this would be considered contraction through direct contact.

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes

Once you have come to a decision, you should "go" over it and

Investigator a has biological specimens that are coded and linked to identifiers of the source individuals. investigator a provides the specimens to investigator b but does not provide the individual identifiers. investigator b agrees not to re-identify the source individuals. is investigator b's research using the biospecimens human subjects research according to the definition of human subjects research in the federal regulations?