Coronavirus (COVID-19) words and terms explained in plain English
The National Adult Literacy Agency (NALA) has compiled the following words about coronavirus (also called COVID-19) with plain English explanations. We hear many of these words everyday on the news, radio, TV and online. We list words from A-Z.
The words and definitions are taken and adapted from:
- the Health Service Executive (HSE),
- World Health Organisation (WHO),
- newspapers, TV and radio such as RTÉ news, glossary of terms in Time magazine,
- Health Protection and Surveillance Centre (HPSC) A to Z list, and
- dictionaries – Merriam-Webster have added new words to their dictionary.
Last updated: 21 April 2020
A
Asymptomatic
This is where you are not showing any symptoms that you have COVID-19. However, you can still pass the virus on to others.
At-risk groups
There are some groups of people who may be more at-risk of serious illness if they catch COVID-19.
You are more at risk of serious illness if you catch COVID-19 and you:
- are over 60, people over 70 are particularly vulnerable and should cocoon
- have a long-term medical condition – for example, heart disease, lung disease, diabetes, cancer or high blood pressure, and
- have a weak immune system (immunosuppressed)
- have a medical condition that can affect your breathing
- are residents of nursing homes and other long-stay settings
- are in specialist disability care and are over 50 years of age or have an underlying health problem
Source: HSE webpage on At-risk groups and coronavirus
B
Body temperature
The normal adult body temperature is 36.5 to 37 degrees Celsius. A high temperature or fever is 38 degrees Celsius or above.
C
Case
This is a person with COVID-19.
(An index case is the first documented case in a population, region, or family.)
Chain of infection
This is how an infection spreads from one person to another.
This can also be called chain of transmission.
You can read more on this in the HSE Patient Safety sheet on germs.
Clinical trials
These are types of research that study the effectiveness and safety of medications (such as vaccines) by monitoring their effects on large groups of people.
Close contact
This can mean someone:
- spending more than 15 minutes face-to-face contact within 2 metres of an infected person
- living in the same house or sharing accommodation with an infected person
Source: HSE webpage on Symptoms and causes
Cluster
This refers to a small group of people in a particular space who all have the same disease. For example, a cluster of people in nursing homes or hospitals.
Cocooning
This is where certain groups of people (such as people over 70 and people with health issues) will stay in their homes to avoid contact with any person who may have COVID-19.
More information from the HSE here and watch this video.
Community transmission
This occurs where a person who gets COVID-19:
- has not travelled to an affected area, and
- has no connection to a known case.
Communicable
This means that coronavirus can be spread from one person to another.
Co-morbidity
This means having two different health conditions at the same time. COVID-19 has been found to be particularly severe for people who have other health issues.
Compromised immune system
This is where you have a weak immune system (immunosuppressed).
There are many things that can cause a weak immune system, including:
- cancer treatment
- treatment for autoimmune diseases, such as rheumatoid arthritis, lupus, multiple sclerosis (MS) and inflammatory bowel diseases
- HIV
- having an organ transplant or a bone-marrow transplant
Source: HSE webpage on At-risk groups and coronavirus
Contact – direct and indirect
Contact with someone with COVID-19 can include direct contact and indirect contact which can spread the virus.
- Direct contact is when you breathe in droplets from an infected person’s cough or sneeze through the air. That’s why keeping your distance to 2 metres apart is important.
- Indirect contact is when you touch something that the infected person has touched with the virus and it is spread to you. That’s why cleaning regularly touched surfaces like door handles, light switches and so on is important.
Contact tracing
When the health authorities try to find who has been in close contact with someone who has COVID-19 to see who else may be at risk of catching it.
Source: Journal.ie contact tracing explainer
Contagious
This means that a disease can be spread from one person to another, typically by direct contact. This is why we don’t shake hands with people during this COVID-19 outbreak.
Contamination
This is a process of infecting or staining something making it impure or spoiled.
Containment phase
Steps introduced to prevent the virus from spreading for as long as possible, such as identifying early cases and trying to establish who the infected person has been in contact with.
Source: RTÉ website: the terminology of COVID-19
Containment strategy
Process of preventing transmission of COVID-19 from an infected individual to others. This means isolating a person with COVID-19 from other people.
Coronavirus COVID-19
Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.
Source: World Health Organisation https://who.int
It is new illness that can affect your lungs and airways. Most people infected with the COVID-19 virus will experience mild to moderate respiratory (breathing) illness and recover without needing special treatment.
COVID-19 is spread by sneeze or cough droplets. To infect you, it has to get from an infected person’s nose or mouth into your eyes, nose or mouth. This can be direct (from droplets) or indirect (on hands, objects, surfaces).
Source: HSE Coronavirus Overview
The name COVID-19 comes from the year it was first detected (2019) and using letters from CO-rona-VI-rus D-isease.
D
Delay phase
In this phase the government has taken measures to reduce the peak impact of the COVID-19 and to slow its spread.
For example, shutting schools and colleges and placing restrictions on public gatherings are measures to reduce the impact on COVID-19.
Source: RTÉ website: the terminology of COVID-19
Diagnostics
The way healthcare staff identify a particular illness by examining signs and symptoms.
Disease
An illness that affects a person, animal, or plant. It can prevent the body and mind from working normally.
Disinfectant
This is a chemical liquid that kills bacteria. A common disinfectant is bleach.
E
Endemic
The constant presence of a disease in a population within a certain area.
Source: RTÉ website: the terminology of COVID-19
Epidemic
This is a sudden increase in the number of cases of a disease – more than what’s typically expected for the population in that area.
Epidemiology
The study of the spread or pattern of sickness in a group of people.
Exponential growth
This means that numbers increase over time very rapidly as they multiply every day. For example:
- 2 people infect 2 more people each meaning 4 people are infected.
- 4 people infect 4 more people each meaning 16 people are infected.
- 16 people infect 16 more people each meaning 356 people are infected and so on.
F
False information
False information is news, stories or hoaxes created to deliberately misinform or deceive readers. Always get your facts through trusted sources:
Source: Webwise – what is false information (fake news) www.webwise.ie
Irish sources:
- the Health Service Executive (HSE)
- gov.ie website
Fact checkers:
- World Health Organisation – myths busters
- The International Fact-checking Network (IFCN) have a fact-check database
- The Irish news website www.thejournal.ie will fact check any COVID-19 claims
Fever
A fever is a temporary increase in your body temperature, often due to an illness. A high temperature is 38 degrees Celsius or above. Your body’s normal temperature is between 36 and 36.8 degrees Celsius.
More on fever here on the HSE website.
‘Flatten the curve’
This means reducing the rate at which people become infected with COVID-19. If that rate is pictured as a curve, they would rather it look low and long than high and narrow.
Source: journal.ie article
This is our goal as we fight COVID-19 because if we control the spread then we reduce the cases arriving into hospitals at the same time.
Flu
Flu (influenza) is a severe infection caused by a virus. The flu virus infects your lungs and upper airways. More on flu here on the HSE website.
G
Gov.ie website
This is a central website for government services and information.
H
Hand hygiene and handwashing
Hand hygiene is a way of cleaning your hands that reduces harmful bacteria on them and stops the spread of harmful germs.
The HSE and the Government have recommended that we wash our hands regularly using soap and water. Sing the ‘Happy Birthday’ song twice while washing your hands – this takes 20 seconds. Watch a video here.
More from the HSE on how to clean your hands and a hand hygiene poster.
Health literacy
Strong health literacy is important as we are dealing with a lot of health information during this COVID-19 outbreak.
It has two elements:
- Health services and health care professionals communicate clearly and take account of possible health literacy and numeracy needs.
- People understand health information correctly and can make an informed decision
Source: NALA Factsheet on health literacy and numeracy
Herd immunity
This is when a high percentage of the community is immune to a disease, usually through vaccination and/or prior illness.
HSE
The Health Service Executive (HSE) provides all of Ireland’s public health services in hospitals and communities across the country.
They are leading the information campaign about COVID-19 and are the best source for information about Ireland.
I
Immunisation
This is process where a person is made immune or resistant to an infectious disease, usually by giving them a vaccine.
Incubation period
The time between when you are exposed to the virus and when symptoms and signs become obvious.
Infection
This occurs when germs enter the body, causing it to display symptoms as it tries to destroy the harmful germs.
Source: HSE Patient Safety sheet on germs.
Infodemic
This is when there is too much information – some accurate and some not. An infodemic can make it hard for people to find trustworthy sources and reliable guidance when they need it.
Source: WHO Situation Report 13, February 2020
Isolation
The process of separating something from other things.
Self-isolation means staying indoors and completely avoiding contact with other people. You need to do this if you have symptoms of COVID-19. This is to stop other people from getting it. More information from the HSE.
J – none
K – none
L
Lockdown
A state of isolation or restricted access put in place by the State to keep people safe against the spread of COVID-19.
M
Mask
A covering to fit over the nose and mouth to protect against infection from others. The World Health Organisation say that if you are healthy you only need to wear a mask if you are taking care of a person with suspected COVID-19 infection.
More information: WHO Advice for public: when and how to wear masks
Misinformation
This is false or inaccurate information that deliberately intends to deceive.
For example, in mid-March there were messages on WhatsApp that Ireland was going into lockdown. This was false and Thejournal.ie debunked it here.
Mitigation phase
This phase:
- provides hospitals with the support they need to maintain essential services as COVID-19 spreads, and
- helps those who are ill in the community to reduce the overall impact of COVID-19 on their families, friends and communities.
Source: RTÉ website: the terminology of COVID-19
Morbidity rate
This is the percentage of people who have a disease in the population.
Mortality rate
This is the percentage of people who have died because of an illness in the population.
N – none
O
Outbreak
The number of disease cases that is higher than what is normally expected.
In 2020, we are currently experiencing a sudden outbreak of COVID-19 with 531,609 cases since December (As of 26 March, Source: Worldometer www.worldometers.info/coronavirus/#countries)
P
Pandemic
This is when an epidemic spreads between countries affecting a large number of people. In 2020, we are in a pandemic with the worldwide spread of COVID-19.
Personal Protective Equipment (PPE)
This is equipment that will protect the user against health or safety risks at work. It includes for example masks, gloves, gowns and eye protection.
Physical distancing
This means people are separated out. For example, when we go outside we must make sure we are 2 metres (6.5 feet or 3 arm length for an average sized adult) away from the next person.
Pre-existing condition
This means any condition for which the patient has already received medical advice or treatment. For example, diabetes, cancer, lung disease and heart disease. It can also be called an underlying condition.
Q
Quarantine and Self-quarantine
A period of time where a person or animal with a contagious disease is isolated.
Self-quarantine is where you restrict your movements to avoid contact with other people within your home and in social situations for a period of time – it recommended 14 days.
R
Respiratory
This means breathing. Lungs help us to breathe.
Respiratory hygiene
These are measures to prevent infection such as:
- Covering your nose or mouth with a tissue when coughing or sneezing and getting rid of the used tissue in a waste bin and wash your hands.
- Coughing or sneezing into the inner elbow (upper sleeve) rather than into the hand, if no tissues are available.
- Keeping contaminated hands away from the mouth, eyes and nose.
- Washing your hands after:
- sneezing, coughing or blowing your nose
- having contact with possible contaminated objects or materials such as table tops, smartphone, remote controls.
Restricted movement
This means avoiding contact with other people and social situations as much as possible. It is sometimes referred to as self-quarantine.
Source: HSE webpage on Restricted movements and self-isolation
The latest guidelines from the Government were published on 1 April and are available here.
S
Self-isolating
This means staying indoors and avoiding contact with other people. The HSE says anyone with symptoms should self-isolate for 14 days, as this will help slow the spread of coronavirus.
More information on self-isolation from the HSE here.
Social distancing
This means you stay away from other people so less people get the virus.
How do we do this?
We do this by:
- keeping a space of 2 metres (6.5 feet or 3 arm lengths for an average sized adult) between you and other people
- reducing physical connection with people outside the workplace and home
- reducing the number of people you meet every day
- avoiding common sleeping areas
- avoiding crowded spaces
- working from home if possible
Source: HSE website: Protect yourself and others.
Spread (stop the spread)
COVID-19 is spread through sneeze and or cough droplets.
You could get the virus if you:
- come into close contact with someone who has the virus and is coughing or sneezing
- touch surfaces that someone who has the virus has coughed or sneezed on and bring your unwashed hands to your face (eyes, nose or mouth)
Source: HSE website: Symptoms and Causes
Symptoms of coronavirus (COVID-19)
These are signs that you might have COVID-19
The main symptoms to look out for are:
- fever (high temperature – 38 degrees Celsius or above) or chills
- a cough – this can be any kind of cough, not just a dry cough
- shortness of breath
Source: HSE website: Symptoms and Causes
Super spreader
This is a person who infects significantly more people than usual. This is not a scientific term and has been used by the media.
You can read more about this term in this article in the Guardian.
Supply chain
This is a system of organisations, people, activities, information, and resources involved in moving a product or service from supplier to customer.
In relation to COVID-19, a supply chain is about how food and other products get from a farm or factory into our supermarkets and shops.
Surge
A sudden increase in cases of people infected with COVID-19.
Swab
This is a small piece of cotton wool used by a doctor or nurse for taking a specimen (sample of something).
If you need a test for COVID-19 a healthcare worker will take a sample from inside your mouth and nose using a swab.
Here is a video of Ryan Tubridy getting a swab on the Late Late Show.
Symptomatic person
This is a person who has COVID-19 and can spread it to other people. They have COVID-19 symptoms – see HSE website: Symptoms and Causes
T
Testing
This is where people with symptoms that could be COVID-19 are checked for the virus by taking a swab from their mouth and nose.
Your GP (doctor) can arrange a test if you need one. Call your GP to be assessed for a test if you have a fever (high temperature – 38 degrees Celsius or above) or chills and one of the following symptoms:
- a cough– this can be any kind of cough, not just a dry cough
- shortness of breath
Your GP (doctor) may also arrange a test if you are in one of the priority groups. Read more information on testing on the HSE website.
Transmission
The act of transferring something from one person or place to another.
In the case of COVID-19, this means transferring the virus from one person to another by coming into close contact with someone who has the virus and is coughing and sneezing. You can also get the virus from touching surfaces that someone who has the virus has coughed or sneezed on.
Triage
This is the process of sorting people based on their need for immediate medical treatment and sometimes has to be used in hospitals.
U
Underlying condition
This means any condition for which the patient has already received medical advice or treatment. For example, diabetes, cancer, lung disease and heart disease. It can also be called a pre-existing condition.
People with underlying conditions are more at risk of serious illness if they catch COVID-19.
V
Vaccine
This is a product that helps the body’s immune system to fight against infections. Most vaccines are given by an injection, but some are given orally (by mouth) or sprayed into the nose.
There is currently no vaccine for COVID-19.
Vector/s
In medicine, a vector is a carrier of disease.
Ventilator
This is a machine to support breathing. It helps to get oxygen into the lungs, removes carbon dioxide from the body and helps people breathe easier. It can also breathe for people who cannot breathe on their own.
Virologist
A scientist or doctor who studies viruses and the diseases viruses cause.
Virus
It is a tiny, living thing that causes disease and sickness.
Vulnerable person or people
A vulnerable person is someone in need of special care, support, or protection.
During the COVID-19 outbreak vulnerable people are older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer.
W
WHO (World Health Organisation)
The authority responsible for public health within the United Nations system (about 53 countries). It has excellent information resources including videos about washing hands and how to social distance.
The website is https://www.who.int/
WHO Alert on WhatsApp
The World Health Organisation launched WHO Health Alert on WhatsApp.
This is a messaging service that will send you the latest reliable and trusted information and news on COVID-19. This includes symptom information and how to protect yourself. You can also ask questions.
To join using WhatsApp, send the word ‘Hi’ to this number: 00 41 798 931 892.
Wuhan
This is the city in China where the first case of COVID-19 was discovered.
X – none
Y – none
Z – none
You can also download a PDF of this list here.