11 states report breakthrough COVID-19 hospitalizations: What the data shows

Eleven states publicly report data on current or cumulative COVID-19 hospitalized based on vaccination status.  

In December, the monthly rate of COVID-19-associated hospitalizations was 16 times higher for unvaccinated Americans 18 years and older, compared to fully vaccinated Americans, according to CDC data.

Below is a breakdown of hospitalizations by vaccination status based on data from each state's official COVID-19 dashboard. Discrepancies exist in terms of how each state reports this data. States either sort hospitalizations by vaccinated versus unvaccinated, or vaccinated versus partially vaccinated. Some only offer percentages or rates, instead of hospitalization totals. 

Note: Iowa and Louisiana only provide the percentage of unvaccinated or partially vaccinated hospitalizations; Becker's calculated the percentage of vaccinated hospitalizations. 

Current data

California (data for week ending Jan. 2) 

Hospitalization rate among vaccinated: 9.2 per million people
Hospitalization rate for unvaccinated: 54.9 per million people 

Iowa (data as of Jan. 20)

Total hospitalizations: 957
Hospitalizations involving vaccinated patients: 38.2 percent
Hospitalizations involving unvaccinated or partially vaccinated patients: 61.8 percent 

Colorado (data as of Jan. 20)

Total hospitalizations: 1,641
Hospitalizations involving vaccinated patients: 534
Hospitalizations involving unvaccinated patients: 1,107

Connecticut (data as of Jan. 20)

Total hospitalizations: 1,733
Hospitalizations involving vaccinated patients: 716
Hospitalizations involving unvaccinated or partially vaccinated patients: 1,017

Louisiana (data as of Jan. 20)

Total hospitalizations: 2,367
Hospitalizations involving vaccinated patients: 28 percent
Hospitalizations involving unvaccinated or partially vaccinated patients: 72 percent 

Massachusetts (data as of Jan. 19)

Total hospitalizations: 3,144
Hospitalizations involving vaccinated patients: 1,503 
Hospitalizations involving unvaccinated patients: 1,641

North Dakota (data represents weekly averages as of Jan. 16)

Total hospitalizations: 197
Hospitalizations involving vaccinated patients: 61
Hospitalizations involving unvaccinated patients: 121
Hospitalizations involving boosted patients: 15  

West Virginia (data as of Jan. 21)

Total hospitalizations: 980
Hospitalizations involving vaccinated patients: 297
Hospitalizations involving unvaccinated patients: 683

 

Cumulative data

Idaho (data as of Jan. 20) 

Hospitalizations among fully vaccinated: 792  
Rate of hospitalization among vaccinated: 104.2 per 100,000 people
Hospitalizations among individuals unvaccinated or not fully vaccinated: 5,061
Rate of hospitalization among individuals unvaccinated or not fully vaccinated: 469 per 100,000 people

Indiana (data as of Jan. 20)

Hospitalizations among fully vaccinated: 2,776
Rate of hospitalizations among fully vaccinated: 0.077 percent 

New York (data as of Jan. 17)

Hospitalizations among fully vaccinated: 30,005 
Rate of hospitalizations among fully vaccinated: 0.23 percent 

 

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