Molecular model of a SARS-CoV-2 non-structural protein 15 (diverse colours) complexed with a poly(A/U) RNA (red and yellow). Polyadenylic–polyuridylic acid (poly(A/U)) is a double-stranded RNA molecule that signals only through TLR3.

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Keywords: 5-6, amnion, amniotic, body, cord, embryo, embryonic, fluid, human, people, person, persons, placenta, sac, umbilical, week, weeks, yolk