CORD-19:04c300fc145b27f210fe05c52a93de14920c17bc / 19511-19749 3 Projects
Annnotations
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T52 | 0-238 | Epistemic_statement | denotes | At least some of these laboratory selected variants might have been able to spread in the population since they were not neutralized by many samples of sera from potential hosts which did recognize the parent virus (Natali et al., 1981) . |