COVID-19 Counts by Age Cohort 5/11/2023

This dataset is no longer being updated as of 5/11/2023. It is being retained on the Open Data Portal for its potential historical interest.

This dataset contains weekly totals of COVID-19 cases among Cambridge residents by age group.

Of note:

The graphs do not include COVID-19 cases among Cambridge residents living in skilled nursing or assisted living facilities.

The case counts comprise confirmed cases and two types of probable cases: (1) people who receive a positive antigen test and (2) people who are a known contact of a confirmed case and have received a clinical diagnosis based on their symptoms. The case counts do not include antibody positive cases.

Cases are assigned to a given week based on the date of symptom onset. If that information is not available, the date reflects the test date (if available), or the report date (when a laboratory reports results to the state health department).

Dates on the line graphs reflect the start date of the week. For instance, June 7 represents the week of June 7-13.

Counts for the most recent week are incomplete. Case counts for individual weeks going back in time may change as more information becomes available.