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SUMMARY:The Social Fabric of Vaccination
DTSTART:20261019T133000Z
DTEND:20261019T153000Z
DTSTAMP:20261002T182300Z
UID:indico-event-9862@indico.fysik.su.se
DESCRIPTION:Speakers: Abbas Karimi Rizzi (Stockholm University)\n\nSpread 
 and control of infectious diseases depend not just on the biology of a pat
 hogen but on the social fabric of its host population. How people interact
  and whether their health behaviors cluster along social lines shape how o
 utbreaks unfold and how effectively they can be contained. A vaccination c
 ampaign that succeeds in one population may fall short in another simply b
 ecause the social structure is different. In this talk\, I first show how 
 social network structure shapes epidemic trajectories and intervention eff
 ectiveness. Taking vaccination as a central example\, I demonstrate how he
 rd immunity becomes harder to achieve when vaccinated individuals mix asso
 rtatively and cluster\, because clustering allows pockets of susceptibilit
 y to persist even at high average coverage. I then present an empirical pi
 cture from Denmark during COVID-19. Using linked national testing\, vaccin
 ation\, and registry data\, we document pronounced clustering in testing u
 ptake and vaccine acceptance\, structured by age\, geography\, socioeconom
 ic status\, and personality. This heterogeneity biases inference under sta
 ndard well-mixed models\, distorts herd immunity assessments\, and shifts 
 the relative effectiveness of interventions. Health behavior is a structur
 ed social response\, not a uniform population parameter\, and accounting f
 or this has direct consequences for equity-aware public health policy.\nZo
 om link: https://stockholmuniversity.zoom.us/j/622224375\n\nhttps://indic
 o.fysik.su.se/event/9862/
LOCATION:Albano Building 3
URL:https://indico.fysik.su.se/event/9862/
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