News Release 

Resilience of primary care networks

Proceedings of the National Academy of Sciences

Using a dataset that included approximately 96% of the population in Austria, researchers developed a model based on regional primary care networks to determine how flow between primary care physicians (PCPs) and patients across 2 years affected delivery of adequate health services; when a critical fraction of PCPs were removed from networks, which varied between 5% and 40%, networks became significantly weaker, to a point where maintaining coverage for all patients was not possible, according to the authors.


Article #19-04826: "Quantification of the resilience of primary care networks by stress testing the health care system," by Donald Ruggiero Lo Sardo et al.

MEDIA CONTACT: Stefan Thurner, Medical University of Vienna, AUSTRIA; tel: +43-140160 36251; email:; Peter Klimek, Medical University of Vienna, AUSTRIA; tel: +43-14016036255; email:

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