Retrovir/ziduvodine

we have been told that all of the children are on a single dose of this medication a day. They appear to be healthy no one is coughing or appears ill. Two of them HAVE had tuberculosis in the past but were treated and are not currently ill. There is a snotty nose going around the orphanage, one of our boys had it now the other does. but it hasn't slowed them much. they aren't ACTING sick.  we don't know anything about their counts. Won't know anything about that until they get home. They sure are great kids. We sure love them and they always come running with hugs and kisses when we arrive at the children's home where they reside.  This is going to be a wild adventure and I know we will have some stuff to learn along the way, but they are so worth it.