2021 Surveillance Reports
EPI Week Reports
- CMMCP Monthly Rainfall Graph (.pdf) – March - September 2021 vs. 41 year average (Source: Northeast Regional Climate Center)
- Massachusetts Weekly Rainfall Graph (.pdf) – March - August 2021 vs. 16 year average (Source: CMMCP/Northborough weather station)
- 2021 Mosquito Collections (.pdf) – Mosquito collections submitted for virus testing
- 2021 EPI Week Calendar (.pdf)
- 2021 Season Summary (please check back)
2021 Summer Epi Week Calendar - "Vector Months"
WHAT IS AN "EPI WEEK"?
An epidemiological week, commonly referred to as an epi week or a CDC week, is simply a standardized method of counting weeks to allow for the comparison of data year after year. Many people know these as CDC weeks because CDC uses them and has published them in the past. Nevertheless, they are used throughout the world by epidemiological teams in different countries.