sal·low. Of a sickly yellowish hue or complexion.

What does Virologically mean?

(ˌvaɪrəˈlɒdʒɪkəlɪ) adv. (Medicine) in a manner relating to virology.

What does Sallowness mean?

of a sickly, yellowish or lightish brown color: sallow cheeks; a sallow complexion.