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sero-immunity
sero-immunity n. 
/ˌsɪərəʊᵻˈmjuːnᵻti/, /ˌsɪroʊəˈmjunədi/ immunity conferred by the administration of antiserum.
Brit. /ˈsɪərəʊᵻˌmjuːnᵻti/
, /ˈsɪərəʊᵻˌmjuːnᵻti//ˌsɪərəʊᵻˈmjuːnᵻti/U.S. /ˈsɪroʊəˌmjunədi/
, /ˈsɪroʊəˌmjunədi//ˌsɪroʊəˈmjunədi/ΚΠ
1907 Jrnl. Amer. Med. Assoc. 6 Apr. 1219/1 Sero-immunity to bile salts.
1975 Amer. Jrnl. Epidemiol. 101 333/1 Most reports on sero~immunity have dealt with small children, following vaccine programs with very little information on maintenance of artificially induced antibody.
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