COVID-19 Current Updates:

Guidance if you tested Positive for COVID:

Please stay home and if possible, isolate yourself from other household members even is everyone is vaccinated.  You must continue to isolate for at least 5 days.  Day 0 is the day you first experiences symptoms OR your test date if you do not have symptoms.  On day 6 you may leave isolation if your symptoms have improved AND you have been fever-free without the use of fever-reducing medication for the previous 24 hours.  You must adhere to strict mask wearing for an additional 5 days, even with other household members.  You do not need to get a negative test before leaving isolation.


  • Please contact your close contacts that they have been exposed.  Close contacts are individuals you have been within 6 feet of you for 15 minutes or more in a 24 hour period, while indoors, starting two days before your symptoms started or your test day.

IF you are notified that you have been a Close Contact:

  • Unvaccinated:   Stay home for 5 days and isolate.   After, continue to wear a mask around others for an additional 5 days.  IF SYMPTOMS DEVELOP, get a COVID test and stay home until results are back.
  • Vaccinated:   Wear a mask around others for 10 days.   Test on day 5 if possible.

Visit for more information on isolation and COVID protocols

CDC Quarantine and Isolation Calculator

CDC Covid Quarantee and Isolation Calculator

COVID-19 Quarantine & Isolation Calculator from the CDC

NEW, online, mobile-friendly calculator provides an easy-to-use, individualized way to help people follow CDC's quarantine and isolation guidance. The Q&I Calculator is designed to be used by individuals, healthcare providers, businesses, and organizations that are managing COVID-19 cases and close contact exposures. 

Please note that the Q&I Calculator is not for people with COVID-19 who are moderately or severely ill or those who have a weakened immune system (immunocompromised)-they should talk to their doctor about when to end isolation.  

In addition, this tool does not apply to cases and close contacts identified in certain settings. Parents with children in K-12 schools or early care and education (ECE) programs should consult the program administrator for specific isolation and quarantine guidance in their school or ECE setting

June 19, 2022 - PRESS RELEASE -  Following recommendations from the US Centers for Disease Control and Prevention (CDC), the Baker-Polito Administration today announced that Massachusetts children ages 6 months to 4 years old are now eligible to receive the Moderna or Pfizer COVID-19 vaccine.  Read information on the release of vaccine for ages 6 months to 4 years HERE

June 10, 2022 - Commonwealth of Massachusetts updates Mask Advisory:   The latest Advisory regarding masks and face coverings have been UPDATED.  The Department of Public Health mask advisory is effective July 1, 2022.  For more information visit

May 9, 2022:   POST-COVID Condition (or Long COVID)  The CDC recently added website information and overview of what is known, to date, about Post-COVID conditions.  They are also providing information about what the CDC and other researchers are doing to address questions about after-effect condition known as Post-COID or Long COVID.  LINK HERE

March 29, 2022:  FDA Authorized Second Booster of two COVID-19 Vaccines for older and Immunocompromised.  

Today, the U.S. Food and Drug Administration authorized a second booster dose of either the Pfizer-BioNTech or the Moderna COVID-19 vaccines for older people and certain immunocompromised individuals. The FDA previously authorized a single booster dose for certain immunocompromised individuals following completion of a three-dose primary vaccination series. This action will now make a second booster dose of these vaccines available to other populations at higher risk for severe disease, hospitalization and death. Emerging evidence suggests that a second booster dose of an mRNA COVID-19 vaccine improves protection against severe COVID-19 and is not associated with new safety concerns.

The agency amended the emergency use authorizations as follows:   FOR FULL REPORT LINK HERE

  • A second booster dose of the Pfizer-BioNTech COVID-19 Vaccine or Moderna COVID-19 Vaccine may be administered to individuals 50 years of age and older at least 4 months after receipt of a first booster dose of any authorized or approved COVID-19 vaccine.
  • A second booster dose of the Pfizer-BioNTech COVID-19 Vaccine may be administered to individuals 12 years of age and older with certain kinds of immunocompromise at least 4 months after receipt of a first booster dose of any authorized or approved COVID-19 vaccine. These are people who have undergone solid organ transplantation, or who are living with conditions that are considered to have an equivalent level of immunocompromise.
  • A second booster dose of the Moderna COVID-19 Vaccine may be administered at least 4 months after the first booster dose of any authorized or approved COVID-19 vaccine to individuals 18 years of age and older with the same certain kinds of immunocompromise.

February 24, 2022:  Based on current  COVID-19 data and trends, the Carlisle Board of Health,  at their meeting on February 23, 2022, voted unanimously to lift the Indoor Mask Mandate for all public buildings and facilities open to the public in Carlisle and to replace the Mask Mandate with a Mask Advisory in accordance with the recommendations established by the Center for Disease Control (CDC) and adopted by the Mass. Dept. of Public Health on February 15, 2022. Further information is available at

Other Updates:

  • February 25, 2022 - CDC announced, effective February 25, 2022, it is no longer requiring that masks be worn on school buses or vans for K-12 students and children in childcare programs.  As always, any individual who wishes to continue to wear a mask should be supported in that choice.  For more information on updated CDC guidance  LINK HERE .


Free at-home COVID-19 rapid tests available to all residents through a new web-based ordering platform. Each household is entitled to 4 testing kits through this program. These rapid antigen at-home tests can be ordered from the U.S. Post Office at COVID Home Tests | USPS.   For Resident testing information LINK HERE.

Effective December 29, 2021:  

The Department of Public Health is adopting updated guidance from the Centers for Disease Control and Prevention (CDC) regarding isolation and quarantine periods for the general population, effective immediately. For the general public, this updated guidance shortens the recommended time for isolation and quarantine from 10 days for people with COVID-19 to 5 days, if asymptomatic, followed by 5 days of wearing a mask when around others. 

On background:

Effective December 21, 2021: In response to the spread of the Delta variant and the emerging Omicron variant, the Department of Public Health now advises that all residents, regardless of vaccination status, wear a mask or face covering when indoors (and not in your own home).   Read advisory HERE.

Breakthrough Case Review Finds 97% of COVID-19 Cases in Vaccinated Individuals Don't Result in Severe Illness

BOSTON (December 20, 2021) - Today the Massachusetts Department of Public Health released a review of breakthrough COVID-19 cases in vaccinated Massachusetts residents  and found nearly 97% of all breakthrough cases in the Commonwealth have not resulted in hospitalization or death. Additionally, the review found unvaccinated residents are five times more likely to become infected than fully vaccinated residents (two doses of the Moderna or Pfizer vaccine or one dose of Johnson & Johnson) and unvaccinated residents are 31 times more likely to become infected than fully vaccinated residents who have received a booster.  

The review also found that 99.9% of breakthrough cases among fully vaccinated people under the age of 60 did not result in death. Among the breakthrough cases for residents over the age of 60, 97% did not result in death. No deaths have been reported in breakthrough cases among those under age 30. 


Town of Carlisle currently has an mask mandate for in-door public spaces.  Please wear a mask.

Mask requirements vary depending on individual business and local regulations.  Please check with businesses and towns you frequent for their mask policy.

mask image

Guide to Understanding Masks to Protect Children Against COVID-19

Effective July 30, 2021: The Department of Public Health has issued a new mask advisory in light of the Centers for Disease Control and Prevention’s updated guidance. Fully vaccinated individuals are advised to wear a mask or face covering when indoors outside of your home if you have a weakened immune system, are at increased risk for COVID-19 or if someone in your household is at increased risk or unvaccinated. Masks are still mandatory for all individuals on public and private transportation systems (including rideshares, livery, taxi, ferries, MBTA, Commuter Rail and transportation stations), in healthcare facilities and in other settings hosting vulnerable populations, such as congregate care settings.  For More Information:  link HERE.

Mask Advisory for vaccinated and unvaccinated residents HERE. resource for COVID-19 Prevention and Treatment

Weekly Vaccination Report for the Town of Carlisle - as reported in the Weekly Municipality Vaccination Data for June16, 2022

Carlisle5-11 Years405363
Carlisle12-15 Years302313168
Carlisle16-19 Years295288199
Carlisle20-29 Years353351220
Carlisle30-49 Years908902675
Carlisle50-64 Years13671159903
Carlisle65-74 Years612682585
Carlisle75+ Years329388331

Raw Data:  Link Here Census data used based on numbers.  Note:  vaccination data as of 6/14/2022

A note about the numbers:   Information provided from the Massachusetts Department of Public Health COVID 19 Dashboard - updated on a weekly, or biweekly basis  LINK HERE.

As additional information on COVID-19 transmission has evolved, MDPH has changed its protocols on case follow-up.  For updated information on guidelines for ISOLATION and QUARANTINE for close contact  refer to information LINK HERE

For up to date information on COVID-19 updates and information of re-opening Massachusetts: LINK HERE.