Supported by the U.S. National Library of Medicine (R01-LM010685 [L.B.]); the National Institute on Aging (RO1AG049493 [S.M.P.]); U.S. Department of Veterans Affairs (VA 1 I01 BX003471 [D.W.H.R.]); Stanford Medical Scientist Training Program (T.J.D.); National Heart, Lung, and Blood Institute (1UO1HL123009 [B.T.T.]); German Ministry of Education and Research (BMBF and IPSELON [S.H.]); National Institute of Allergy and Infectious Diseases (AI160167 [M.R.L.]); Deutsche Forschungsgemeinschaft (Germany) (KFO309/P2,8, SFB1021/C5, and SFB-TRR84/B9 [S.H.]); National Institute of General Medical Sciences (GM125095 [E.P.S.]); Pandemeinetzwerk Hessen (Germany) (LOEWE Research Clusters Diffusible Signals and iCanX [S.H.]); U.S. Department of Defense (A130219 [L.B.W.]); and grants HL147920 and HL131608 (R.L.Z.); HL103836, HL126176, and HL135849 (L.B.W.); NHLBI 2020 R13 HL152479 and NHLBI 1R01 HL140595 (D.W.H.R.); R35 HL140026 (C.S.C.); NHLBI 5R01HL14254902 (T.J.D.); German Research Foundation (EXC2026 [S.H.]); K24HL141526 and RO1HL132232 (C.L.H.); HL134828, HL126456, and HL140026, HL143896 (M.A.M.); HL137006, HL137915, and HL155804 (N.L.M.); R35 HL139424 (S.M.P.); R35 HL161241 (M.R.L.); and HL66299, HL148069, and HL140182 (T.S.).