It should be noted that depending on your definition of "close personal contact", that is not the only way that Hep B can be contracted. Therefore, IMNSHO, it behooves everyone to get the Hep A and the Hep B shots.
I refer to manicures and pedicures and other intentional or accidental sticks or pricks.
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A fish and a bird can fall in love, but where will they build their nest?