2021 Surveillance Reports

EPI Week Reports

  • EPI Week 22
  • EPI Week 23
  • EPI Week 24
  • EPI Week 25
  • EPI Week 26
  • EPI Week 27
  • EPI Week 28
  • EPI Week 29
  • EPI Week 30
  • EPI Week 31
  • EPI Week 32
  • EPI Week 33
  • EPI Week 34
  • EPI Week 35
  • EPI Week 36
  • EPI Week 37
  • EPI Week 38
  • EPI Week 39
  • EPI Week 40
  • CMMCP Monthly Rainfall Graph (.pdf) – March - September 2020 vs. 40 year average (Source: Northeast Regional Climate Center)
  • Massachusetts Weekly Rainfall Graph (.pdf) – March - August 2020 vs. 15 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

map

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.