1. Light infections are usually left untreated in areas where reinfection is common. 2. Also, using a reed while sick increases the chance for reinfection . 3. However, this approach does not always stop reinfection . 4. Contracting the CTF virus is thought to provide long-lasting immunity against reinfection . 5. If the risk of reinfection is high, screening can be repeated throughout pregnancy. 6. Reinfection is common, but the severity of the illness nearly always diminishes with age.7. Upon reinfection , IgM antibodies usually do not rise again but IgG levels will increase. 8. Inexpensive praziquantel can be used to treat individuals with schistosomiasis, but cannot prevent reinfection . 9. UVGI water must be transported or delivered in such a way as to avoid reinfection . 10. "Immunologic Evidence of Reinfection with Varicella-Zoster Virus " Journal of Infectious Diseases.