Meanings

spread of infection

customer appreciation day (retail sales day)

brief impression (of)

brief impression (of)

irritability

unable to find the words to thank someone

cold feeling

I can't find the words to thank you

sense of guilty pleasure

community-acquired infection

allelopathy

air of (deliberate) imperfection (esp. in make-up)

newly infected person

emerging infectious disease

re-emerging infectious disease

apparent infection

general-purpose cold medicine

human-to-human transmission (of a disease)

derealization

death from infection