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1. Asymptomatic infection; Not a symptomatic infection.

1. Asymptomatic infection

1. Asymptomatic infection

1. Asymptomatic; Hidden

1. Not a silent infection.; Not an asymptomatic infection.

1. Not a latent infection.; It's not a latent infection.

1. Was asymptomatic.; Was a latent infection.

1. Asymptomatic infection.; Hidden infection.

1. Not a silent infection.; Not an asymptomatic infection.

1. Not a latent infection.; Wasn't a latent infection.

1. Asymptomatic infection likely; Subclinical infection likely

1. Was not asymptomatic infection.; Was not a latent infection.

1. Wasn't a latent infection.; Wasn't an asymptomatic infection.

1. Asymptomatic infection; Subclinical infection

1. Was not an asymptomatic infection.; Was not a latent infection.

1. If/when asymptomatic infection; If/when latent infection

1. If it were a latent infection; If it is a latent infection

1. If/when not manifested/apparent infection; If/when latent infection