Because the situation continues to evolve, this page will be regularly updated. The information below reflects the situation as of 03/12/2020.
Q: Can someone who has had COVID-19 spread the illness to others?
A: The virus that causes COVID-19 is spreading from person-to-person. Someone who is
actively sick with COVID-19 can spread the illness to others. That is why CDC recommends
that these patients be isolated either in the hospital or at home (depending on how
sick they are) until they are better and no longer pose a risk of infecting others.
How long someone is actively sick can vary so the decision on when to release someone from isolation is made on a case-by-case basis in consultation with doctors, infection prevention and control experts, and public health officials and involves considering specifics of each situation including disease severity, illness signs and symptoms, and results of laboratory testing for that patient.
Current CDC guidance for when it is OK to release someone from isolation is made on a case by case basis and includes meeting all of the following requirements:
- The patient is free from fever without the use of fever-reducing medications.
- The patient is no longer showing symptoms, including cough.
- The patient has tested negative on at least two consecutive respiratory specimens collected at least 24 hours apart.
Someone who has been released from isolation is not considered to pose a risk of infection to others.
Q: Can someone who has been quarantined for COVID-19 spread the illness to others?
A: Quarantine means separating a person or group of people who have been exposed to a
contagious disease but have not developed illness (symptoms) from others who have
not been exposed, in order to prevent the possible spread of that disease. Quarantine
is usually established for the incubation period of the communicable disease, which
is the span of time during which people have developed illness after exposure. For
COVID-19, the period of quarantine is 14 days from the last date of exposure, because
14 days is the longest incubation period seen for similar coronaviruses. Someone who
has been released from COVID-19 quarantine is not considered a risk for spreading
the virus to others because they have not developed illness during the incubation
period.
Q: Can the virus that causes COVID-19 be spread through food, including refrigerated
or frozen food?
A: Coronaviruses are generally thought to be spread from person-to-person through respiratory
droplets. Currently there is no evidence to support transmission of COVID-19 associated
with food. Before preparing or eating food it is important to always wash your hands
with soap and water for 20 seconds for general food safety. Throughout the day wash
your hands after blowing your nose, coughing or sneezing, or going to the bathroom.
It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this is not thought to be the main way the virus spreads.
In general, because of poor survivability of these coronaviruses on surfaces, there is likely very low risk of spread from food products or packaging that are shipped over a period of days or weeks at ambient, refrigerated, or frozen temperatures.
Q: Will warm weather stop the outbreak of COVID-19?
A: It is not yet known whether weather and temperature impact the spread of COVID-19.
Some other viruses, like the common cold and flu, spread more during cold weather
months but that does not mean it is impossible to become sick with these viruses during
other months. At this time, it is not known whether the spread of COVID-19 will decrease
when weather becomes warmer. There is much more to learn about the transmissibility,
severity, and other features associated with COVID-19 and investigations are ongoing.
Q: What should I do if I had close contact with someone who has COVID-19?
A:There is information for people who have had close contact with a person confirmed
to have, or being evaluated for, COVID-19 available online.
Q:Who is at higher risk for serious illness from COVID-19?
A: Early information out of China, where COVID-19 first started, shows that some people
are at higher risk of getting very sick from this illness including older adults,
and people who have serious chronic medical conditions like heart disease, diabetes,
and lung disease.
Q: What should people at higher risk of serious illness with COVID-19 do?
A: If you are at higher risk of getting very sick from COVID-19, you should: stock up
on supplies; take everyday precautions to keep space between yourself and others;
when you go out in public, keep away from others who are sick; limit close contact
and wash your hands often; and avoid crowds, cruise travel, and non-essential travel.
If there is an outbreak in your community, stay home as much as possible. Watch for
symptoms and emergency signs. Watch for symptoms and emergency signs. If you get sick,
stay home and call your doctor. More information on how to prepare, what to do if
you get sick, and how communities and caregivers can support those at higher risk
is available on People at Risk for Serious Illness from COVID-19.
Q: Does CDC recommend the use of face mask to prevent COVID-19?
A: CDC does not recommend that people who are well wear a face mask to protect themselves
from respiratory illnesses, including COVID-19. You should only wear a mask if a healthcare
professional recommends it. A face mask should be used by people who have COVID-19
and are showing symptoms. This is to protect others from the risk of getting infected.
The use of face masks also is crucial for health workers and other people who are
taking care of someone infected with COVID-19 in close settings(at home or in a health
care facility).
Q: Should I be tested for COVID-19?
A: If you develop symptoms such as fever, cough, and/or difficulty breathing, and have
been in close contact with a person known to have COVID-19 or have recently traveled
from an area with ongoing spread of COVID-19, stay home and call your healthcare provider.
Older patients and individuals who have severe underlying medical conditions or are
immunocompromised should contact their healthcare provider early, even if their illness
is mild. If you have severe symptoms, such as persistent pain or pressure in the chest,
new confusion or inability to arouse, or bluish lips of face, contact your healthcare
provider or emergency room and seek care immediately. Your doctor will determine if
you have signs and symptoms of COVID-19 and whether you should be tested.
Q: Can a person test negative and later test positive for COVID-19?
A: Using the CDC-developed diagnostic test, a negative result means that the virus that
causes COVID-19 was not found in the person’s sample. In the early stages of infection,
it is possible the virus will not be detected.
For COVID-19, a negative test result for a sample collected while a person has symptoms likely means that the COVID-19 virus is not causing their current illness.