US States Vaccine Breakthrough Reporting
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State
State
Alaska
Count3
1
Alaska
2
Alaska
3
Alaska
4
Arkansas
5
California
6
Colorado
7
Connecticut
8
Delaware
9
Idaho
10
Illinois
11
Indiana
12
Maine
13
Massachusetts
14
Michigan
15
Montana
16
Nebraska
17
New Mexico
18
Oklahoma
19
Oregon
20
Tennessee
21
Utah
22
Vermont
23
Washington
24
Washington
25
West Virginia
State
Arkansas
Count1
State
California
Count1
State
Colorado
Count1
State
Connecticut
Count1
State
Delaware
Count1
State
Idaho
Count1
State
Illinois
Count1
State
Indiana
Count1
State
Maine
Count1
State
Massachusetts
Count1
State
Michigan
Count1
State
Montana
Count1
State
Nebraska
Count1
State
New Mexico
Count1
State
Oklahoma
Count1
State
Oregon
Count1
State
Tennessee
Count1
State
Utah
Count1
State
Vermont
Count1
State
Washington
Count2
State
West Virginia
Count1
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URL
Organization/Agency
Format
Update Frequency
Top-line Metrics
Sequencing Metrics
Demographic Metrics
Breakthrough Definition
Attachments
Last Checked
Alaska Department of Health & Social Services
report
weekly
deaths
hospitalizations
not reported
not reported
"Vaccine breakthrough (VB) infections of COVID are those detected in a person who is more than 2 weeks beyond their second dose of a 2-dose series or the only dose of a 1-dose series. All VB cases are investigated by the Section of Epidemiology but only VB cases associated with hospitalization or death are reported to the CDC."
6/19/2021
Alaska Department of Health & Social Services
report
unclear schedule
top-line metric
congregate care setting
symptomatic
vaccine manufacturer
specimens sequenced
lineage breakdown
VOC
race/ethnicity
sex
"a U.S. resident who has SARS-CoV-2 RNA or antigen detected in a respiratory specimen collected ≥14 days after completing the primary series of an FDA-authorized COVID-19 vaccine"
5/17/2021
Alaska Sequencing Consortium
report
weekly
patients under investigation
specimens sequenced
specimens in progress
lineage identifications
specimens fitting criteria for sequencing
specimens submitted for VB investigation
not reported
"Vaccine Breakthrough refers to patients 14 days out from being fully vaccinated who test positive for SARS-CoV-2."
6/19/2021
Arkansas Department of Health
report
weekly
lineage breakdown
age group
No definition listed.
6/16/2021
California Department of Public Health
webpage
unclear schedule
top-line metric
hospitalizations
deaths
not reported
not reported
"Post-vaccination cases are defined as individuals who are fully vaccinated and have a positive SARS-CoV-2 molecular (e.g. PCR) test 14 days or more after they have completed their full one-dose or two-dose COVID-19 vaccination series. They are also referred to as vaccine breakthrough cases."
6/19/2021
Colorado Department of Public Health and Environment
report
unclear schedule
top-line metric
not reported
not reported
Links to the CDC vaccine breakthrough case (https://www.cdc.gov/vaccines/covid-19/health-departments/breakthrough-cases.html)
6/19/2021
Connecticut Department of Public Health
report
unclear schedule
top-line metric
comorbidities
congregate care setting
deaths
hospitalizations
symptomatic
not reported
age range of deaths
sex
"So-called “vaccine breakthrough cases” occur when a person who has completed their vaccine series becomes infected with the COVID virus."
6/19/2021
Delaware Division of Public Health
report
weekly
top-line metric
hospitalizations
deaths
not reported
not reported
"A breakthrough case is defined as testing positive for COVID-19 after an individual has been fully vaccinated for two weeks or more – though it does not mean that the infection actually occurred after vaccination."
6/16/2021
Idaho Department of Health and Welfare
dashboard
weekly
top-line metric
not reported
not reported
No definition listed.
6/16/2021
Illinois Department of Public Health
dashboard
weekly
deaths
hospitalizations
not reported
not reported
"Breakthrough is defined as an individual who tests positive for COVID-19 at least 14 days after being fully vaccinated and did not test positive in the previous 45 days. Following CDC, IDPH is reporting only patients with COVID-19 vaccine breakthrough infection that were hospitalized or died to help maximize the quality of the data collected on cases of greatest clinical and public health importance."
6/19/2021
Indiana State Department of Health
dashboard
weekly
top-line metric
hospitalizations
deaths
not reported
not reported
"Total number of individuals testing positive for COVID-19 at least 14 days after their final dose (or single-dose) vaccination."
6/30/2021
Maine Center for Disease Control & Prevention
report
weekly
top-line metric
not reported
not reported
"COVID-19 cases among individuals who have been fully vaccinated are classified as vaccine breakthrough cases. A person is considered fully vaccinated 14 days after receiving their final dose of the COVID-19 vaccine. This number likely reflects an undercount of the true number of breakthrough cases as not all cases are investigated to determine vaccine status and it takes time to validate vaccine status, delaying cases being included in the count. Vaccine breakthrough cases are expected with any vaccine and the FDA-approved COVID-19 vaccines are extremely safe and effective."
6/16/2021
Massachusetts Department of Health
report
unclear schedule
top-line metric
not reported
not reported
"Persons diagnosed with COVID-19 with a disease onset or earliest positive laboratory result date (whichever is earlier) more than 2 weeks after receiving a complete vaccine series. Persons who have a history of a recent (within the last 45 days) positive COVID-19 test are excluded. A complete vaccine series defined as having received all recommended doses of an FDA-emergency use authorized or WHO-emergency use listed vaccine. "
6/19/2021
Michigan Department of Health and Human Services
report
weekly
top-line metric
deaths
hospitalizations
not reported
age > 65 deaths
"positive test 14 or more days after being fully vaccinated"
6/16/2021
Montana Department of Public Health and Human Services
report
regularly
top-line metric
deaths
hospitalizations
specimens sequenced
lineage breakdown
total variant cases
VOC/VOI
not reported
"Breakthrough infection surveillance began in Montana on February 15, 2021. A breakthrough COVID-19 infection is defined as a positive SARS-CoV-2 RNA or antigen detection in a respiratory specimen that is collected ≥14 days after completing the primary COVID-19 vaccine series of an FDA-authorized COVID-19 vaccine. Depending on the specific vaccine administered, completion of series could be one or two doses of vaccine."
6/16/2021
Nebraska Department of Health and Human Services
report
weekly
top-line metric
specimens sequenced
VOC
not reported
"include individuals with positive tests 14 days or more after completing a vaccination series". The sentence with this definition starts with "Per CDC definition"
6/16/2021
New Mexico Department of Health
press conferences
unclear schedule
top-line metric
hospitalizations
deaths
not reported
not reported
"When a person tests positive for SARS-CoV-2 more than 14 days after a FDA compliant vaccine series (and more than 90 days after a previous positive test)" - from press conf slide "And while the CDC at the start of May announced it would only be investigating breakthrough cases that involved hospitalization or death, Smelser said New Mexico isn’t following the federal agency’s lead and “is still actively trying to investigate every case.”" - santa fe reported article, 5/27/21
6/19/2021
Oklahoma State Department of Health
report
weekly
top-line metric
hospitalizations
deaths
vaccine manufacturer
not reported
not reported
"Vaccine breakthrough cases is defined as an individual with a COVID-19 positive laboratory results (PCR/Antigen) and documentation of COVID-19 vaccination that meets the definition of fully vaccinated. (Individuals are considered fully vaccinated ≥2 weeks after receiving the last dose in the COVID-19 vaccine series.)"
7/2/2021
Oregon Health Authority
report
monthly
top-line metric
congregate care setting
deaths
hospitalizations
region
symptomatic
lineage breakdown
VOC
VOI
age range of deaths
"Vaccine breakthrough cases are defined as instances in which an individual received a positive COVID-19 test result at least 14 days after the completion of any COVID-19 vaccine series."
6/19/2021
Tennessee Department of Health
report
weekly
top-line metric
deaths
hospitalizations
not reported
not reported
"The CDC defines COVID-19 Breakthrough Cases as a U.S. resident with SARS-CoV-2 RNA or antigen detected on a respiratory specimen collected ≥ 14 days after completing the primary series of an FDA-authorized COVID-19 vaccine. All cases meeting this definition through April 30th are reported. As of May 1st, CDC asked that only cases with severe outcomes (hospitalization or death) be reported. Data are currently reported as such: -Prior to May 1st: All people that met case definition -May 1st and after: People that met case definition and had an outcome of hospitalized or deceased from COVID-19"
6/19/2021
Utah Department of Health
dashboard
unclear schedule
top-line metric
hospitalizations
deaths
not reported
not reported
"In the data below, breakthrough cases are defined as someone who has a positive test ≥14 days after they have completed the full series of an approved COVID-19 vaccine. The UDOH determines vaccine status for cases using two methods; by linking all known cases to vaccination records reported into the Utah Statewide Immunization Information System (USIIIS) and through self-report by asking all cases if they have been fully vaccinated. Breakthrough cases may be overrepresented in the data due to this self-reporting."
6/30/2021
Vermont Department of Health
report
weekly
top-line metric
deaths
hospitalizations
not reported
not reported
"Vaccine breakthrough happens when a fully-vaccinated person gets infected with COVID-19"
6/19/2021
Washington State Department of Health
report
weekly
top-line metric
lineage breakdown
total variant cases
not reported
"A vaccine breakthrough case is defined as someone who tests positive for SARS-CoV-2 at least 14 days after their final dose of SARS-CoV-2 vaccine. DOH is prioritizing sequencing of specimens obtained from vaccine breakthrough cases."
6/16/2021
Washington State Department of Health
report
weekly
top-line metric
deaths
hospitalizations
symptomatic
not reported
age group
race/ethnicity
sex
"The criteria for identifying vaccine breakthrough cases include a positive lab test (either a PCR test or an antigen test) at least 14 days after a person received their last recommended dose of an authorized COVID-19 vaccine."
6/19/2021
West Virginia Department of Health
press conferences
unclear schedule
top-line metric
not reported
not reported
"a lot of people do ask what a breakthrough case means that basically means if someone has been fully vaccinated so if you received pfizer moderna that is two weeks post the full cycle of the vaccine but that's what we talk about when we mean breakthrough cases." - quote from press conference
6/19/2021
25 records

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