Racial and ethnic disparities in COVID-19 infections are not explained by social risk factors
New Kaiser Permanente study suggests working and living conditions may be key contributors to disproportionate impact of COVID-19 in communities of color.
COVID-19 vaccination of mother during pregnancy protects infant, though protection wanes
Being vaccinated against COVID-19 during pregnancy provides protection for the baby through its first several months of life, a Kaiser Permanente analysis finds. Protection was stronger against the delta variant than the more recent omicron variant.
Common HIV medication associated with improved COVID-19 outcomes
A medication used to treat HIV and to prevent at-risk people from contracting the virus may improve COVID-19 outcomes for both groups, according to research from Kaiser Permanente published in Clinical Infectious Diseases.
COVID-19 illness and vaccines pose no risk to blood donation supply
A unique Kaiser Permanente study confirms the safety of using blood donated from people who have been vaccinated against or who have had COVID-19.
COVID-19 patients did better if they had booster vaccination
A large Kaiser Permanente analysis of COVID-19 patients confirms the value of vaccination, finding higher rates of hospitalization and advanced medical care for COVID-19 patients who were unvaccinated, were vaccinated but not boosted, or who had an additional health condition such as obesity or heart disease.
Analysis confirms racial disparities in COVID-19 infection
An analysis of Kaiser Permanente members in Northern California early in the COVID-19 pandemic found racial and ethnic disparities in the likelihood of testing positive for the coronavirus, but no significant disparities in mortality among those who were hospitalized.





