"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."
"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"
"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."
"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."
"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."
"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."
"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. "
Montana Department of Public Health and Human Services
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"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."
"include individuals with positive tests 14 days or more after completing a vaccination series". The sentence with this definition starts with "Per CDC definition"
"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
"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.)"
"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."
"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"
"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."
"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."
"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."
"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