49 people who were fully vaccinated have died of COVID in N.J. Here's what we know.

[lapucelle]

25. It's pretty much a given that the data is incomplete and likely an undercount,

especially since asymptomatic folks are less likely to get tested unless they have a specific reason to do so (i.e. contact tracing or athe requirement of having a negative test result in order to engage in an activity or to travel).

COVID-19 Vaccine Breakthrough Case Investigation and Reporting

The number of COVID-19 vaccine breakthrough infections reported to CDC likely are an undercount of all SARS-CoV-2 infections among fully vaccinated persons. National surveillance relies on passive and voluntary reporting, and data might not be complete or representative. These surveillance data are a snapshot and help identify patterns and look for signals among vaccine breakthrough cases.

Data on patients with vaccine breakthrough infection who were hospitalized or died will be updated regularly. Studies are being conducted in multiple U.S. sites that will include information on all vaccine breakthrough infections regardless of clinical status to supplement the national surveillance.

snip==============================================================================

Identifying and investigating hospitalized or fatal vaccine breakthrough cases

As of May 1, 2021, CDC transitioned from monitoring all reported vaccine breakthrough cases to focus on identifying and investigating only hospitalized or fatal cases due to any cause. This shift will help maximize the quality of the data collected on cases of greatest clinical and public health importance.

Previous data on all vaccine breakthrough cases reported to CDC from January–April 2021 are available.

https://www.cdc.gov/vaccines/covid-19/health-departments/breakthrough-cases.html

-----------------------------------------------------------------------------------------------------------------------------------

COVID-19 Vaccine Breakthrough Infections Reported to CDC — United States, January 1–April 30, 2021

Beginning May 1, 2021, CDC transitioned from monitoring all reported COVID-19 vaccine breakthrough infections to investigating only those among patients who are hospitalized or die, thereby focusing on the cases of highest clinical and public health significance.

CDC will continue to lead studies in multiple U.S. sites to evaluate vaccine effectiveness and collect information on all COVID-19 vaccine breakthrough infections regardless of clinical status. Additional information and resources to help public health departments and laboratories investigate and report COVID-19 vaccine breakthrough cases are available at https://www.cdc.gov/vaccines/covid-19/health-departments/breakthrough-cases.html.

https://www.cdc.gov/mmwr/volumes/70/wr/mm7021e3.htm