I have 3 children total, 2 adopted from Korea. The first adoption, dh, bio ds, and I all three travelled. It is a phenomenal experience to visit your child's birth country (although dh was stationed there for a year and ds1 and Ihad visited before). He is 4 1/2 now, and lvoes to hear stories about our experiences in Korea, especially on the trip to get him. It is important to him to hear our different perspectives. Our second adopted child was a "surprise" adoption. We were not planning on adopting, but we did, so the planning and reality of the process was much different than the first time around. I travelled with a friend while dh stayed behind with the other two. There were a variety of factors involved in this decision--my then youngest had never been without at least one of us overnight and he was only 3y, $$ (my friend payed for her ticket and expenses), and limited time off of work for dh because we hadn't had time to save up leave, so we only had the 2 week adoption leave. I know it was the best thing for the time with the options we had, but it was much harder on that ds (and me). He was older (1 yr vs 5 1/2m for our middle child), and attachment was harder anyway due to age, temperament, and experiences, but he would have nothing to do with dh for a long while. It really affected the initial relationship between the two of them for a long time, and I think there are still overtones of that today, 1 1/2 years later. Plus, I had to "break the rules" and let my friend help me with his care, becuase he grieving was intense, and I could only carry a screaming, crying 35lb toddler so long before my arms and back and sanity would give out! So my advice is--if it only $, go! You will cherish those memories, and your children will need your first hand accounts of the experience in their adoption journey. I remember details in a different way that dh does of our trips, and both POV are important to our children. The early bonding in those situations can be critical to their short and long term relationships with you. If you are worried about attachment, etc issues of your other kids, I think that is a more serious consideration, but I think it still is worth going if at all possible. As far as the Hep A vaccine, I know that when I was exposed (on a military base no less

) I got the IG. It hurt like crazy and was ice cold, but was was otherwise not bad. I would think you get it prophylactically with a little work.
As an aside, make sure your dh gets his adoption leave--not chargeable as regular leave!! and can be taken in conjunction with regular leave. Also your adoption credit from the military of $2000 per child
