About COVID-19

Coronavirus Disease 2019, commonly known as COVID-19, is a respiratory illness that can spread from person to person. SARS-CoV-2, the virus that causes COVID-19, is a novel coronavirus that was first identified during an investigation into an outbreak in Wuhan, China.

What You Need to Know

How it Spreads

Similar to how flu and other respiratory illnesses spread, the virus that causes COVID-19 most commonly spreads from an infected person to others through respiratory droplets, including:

  • Through the air by coughing, sneezing, laughing, singing, and talking;
  • Close personal contact, such as touching or shaking hands; and
  • Touching an object or surface with the virus on it, then touching your mouth, nose, or eyes with unwashed hands.

Prevent the Spread

  • Monitor your health and stay home if you are experiencing any symptoms of COVID-19
  • Cover your mouth and nose with a face covering in public spaces
  • Cover your mouth and nose when coughing and sneezing
  • Wash your hands often with running water and soap for at least 20 seconds. Use hand sanitizer with at least 60% alcohol when running water and soap are not readily available.
  • Avoid touching your eyes, nose, and mouth with unwashed hands
  • Practice social distancing by maintaining a distance of at least six feet from people who do not live in your household
  • Avoid large gatherings and crowds
  • Avoid spending time in places that are not well-ventilated
  • Clean and disinfect frequently touched objects and surfaces using standard cleaning products
  • Get vaccinated when the vaccine is available to you


Symptoms of COVID-19 range from mild to severe illness, appearing two to 14 days after exposure to the virus. Some people with COVID-19 are asymptomatic, meaning they do not show any symptoms. If someone is experiencing trouble breathing, chest pain or pressure, or difficulty staying awake, they should seek medical care immediately. Symptoms of COVID-19 include:

  • Fever or chills
  • Cough
  • Shortness of breath or difficulty breathing
  • Fatigue
  • Muscle or body aches
  • Headache
  • New loss of taste or smell
  • Sore throat
  • Congestion or runny nose
  • Nausea or vomiting
  • Diarrhea

People at Increased Risk

People of any age can get COVID-19, even healthy young adults and children. Some people are more likely than others to become severely ill if they contract COVID-19, including:


There are no specific treatments recommended for people with COVID-19. People infected with COVID-19 should receive supportive care to help relieve symptoms, such as taking pain or fever medications, drinking plenty of fluids, and staying home and resting. Some patients who are very sick may need to go to the hospital to get care. 

Protect Yourself and Others


If you have been exposed to someone with COVID-19 or have recently traveled to a high-risk area (see below), we recommend you stay home for 10 days since the last date of exposure/travel and get tested approximately five to seven days after exposure/travel. Quarantine helps prevent spread of disease that can occur before a person knows they are sick or if they are infected with the virus without any symptoms. 

Exceptions include:

  • A person who is 14 days beyond the second dose of their COVID-19 vaccine
  • A person who is within 90 days of a prior confirmed COVID-19 infection (after completing required isolation)

More information can be found here.


If you have tested positive for COVID-19, or have symptoms of COVID-19, stay at home for 10 days (do not visit the store, stay away from household members, and do not invite others into your home) and follow these guidelines

If you have symptoms of COVID-19:

  • Stay at home until at least 10 days have passed since your symptoms first appeared; AND
  • Stay at home until at least 24 hours have passed since any fever went away without the use of fever-reducing medications and improvement in other symptoms.

If you do NOT have symptoms but received a positive COVID-19 test:

  • Stay at home until at least 10 days have passed since the date of your positive COVID-19 test, assuming you don’t develop symptoms.


Travel increases your chances of getting and spreading COVID-19. Staying home is the best way to protect yourself and others. The City of Nashua recommends our community to postpone any non-essential travel, including individuals with preexisting conditions, suppressed immune systems, and older adults as they are at increased risk of serious health complications from COVID-19. 

It is recommended that you stay home and monitor for symptoms of respiratory illness for 10 days after your last date of high-risk travel (to/from Canada, on a cruise ship, or outside of the New England). A negative test during quarantine does not mean it is safe to end quarantine early, you should complete the full 10 days. Exceptions include a person who is 14 days beyond the second dose of their COVID-19 vaccine or a person who is within 90 days of a prior confirmed COVID-19 infection (after completing required isolation).

Individuals with preexisting conditions, suppressed immune systems, and older adults are at increased risk of serious health complications, and even dying if they become ill with COVID-19. Older adults and those of any age with serious chronic medical conditions should postpone any non-essential travel to minimize their risk from COVID-19.

Visit the CDC's website for updated guidance for domestic and international travel.

Know Your Risk

We want you to know your risks during the COVID-19 pandemic to protect the health COVId Risk Levelsand safety of yourself, your family, and your community. The more closely you interact with others and the longer that interaction, the higher the risk of getting or spreading COVID-19.

Individuals who are high risk or work with high-risk populations should avoid moderate, moderate-high, and high risk activities as COVID-19 can be spread easily and without symptoms.

If you engage in public activities, continue to protect yourself by practicing everyday preventive actions. Keep these items on hand when venturing out: a face covering, tissues, and a hand sanitizer with at least 60% alcohol

Learn more about what factors to consider before heading out by visiting the CDC's website.

For More Information: 603-589-3456