I think that CDC chart was saying there were an estimated 25,000 cases in 2007 (not 25,000 reported cases). And of those, an estimated 13,000 cases were acute (more serious symptoms, lasting longer).
I think you should start with reading up on how Hep A affects adults and children (it affects adults more seriously than children). And not sure how old your child is, but the vaccine is safer for a 2 y.o. than for a 1 y.o., I believe the manufacturer recommends that it be given to age 2 and over only, but CDC has it on the schedule at 12 months old against all these recommendations.
Here are links from Dr Sears' website and Mayo clinic.
http://www.askdrsears.com/html/8/T084600.asphttp://www.mayoclinic.com/health/hepatitis-a/DS00397
The short version is that Hep A, unlike other forms of hepatitis, is not a chronic infection. Adults might have symptoms for 6 weeks to 3 months, and more rarely crossing over into 6 months, but when you get over it, it doesn't come back. In rare, acute cases you can sustain liver damage, but that seems to mostly affect people who already have liver problems or are immuno-compromised in some other way. The disease is more serious in adults than in children under 12 (and especially children under 6).