CORD-19:40812d7b28ab3c043610f6e224b3f62806af6eb6 / 71565-71966 4 Projects
Annnotations
| Id | Subject | Object | Predicate | Lexical cue |
|---|---|---|---|---|
| T138 | 0-401 | Epistemic_statement | denotes | However, concerns remain that the attenuated PEDV strains may recover their virulence via mutation in the natural hosts or generate new virulent strains by exchanging their genes with field strains by recombination (See Section 2 for examples of PEDV recombination) unless the viral genes responsible for recombination are defective, or suicide strains are engineered (limited replication competency). |