Published American Economic Review Published Jul 2026Germs in the Family: The Short- and Long-Term Consequences of Intra-Household Disease SpreadN. Meltem Daysal · Hui Ding · Maya Rossin-Slater · Hannes SchwandtThis paper studies the short- and long-term consequences of intra-household respiratory disease transmission from older to younger siblings in Danish families. The central research questions are: (1) …