Covid Research Notes Flashcards
Exposure
Having come into contact with the viruses or bacteria that cause a particular health problem
Infection
The result when viruses or bacteria multiply and invade the body, or enter a part of the body where they are not usually found
Disease
The result when an infection does damage to the body (causing illness or sickness)
Transmission
The way viruses and bacteria spread and infect a person’s body
What are infectious diseases?
Illnesses caused by virus or bacteria that can spread from person to person in several ways. These illnesses can be spread through eating contaminated food, sexual contact, droplets of saliva or mucus, blood, contact with a contaminated surface, or insect bites.
What are some common infectious diseases?
The common cold, influenza (the flu), viral hepatitis, norovirus, and sexually transmitted infections.
How do health departments assist with the control of infectious diseases?
- Counting the number of cases reported
- Investigating cases to determine risk factors for the disease and others who may have been exposed
- Providing information to communities
- Ensuring adequate and appropriate treatment
What is COVID-19?
An infectious disease caused by a new coronavirus.
Coronaviruses are a large family of viruses that are common in people and many species of animals.
In rare cases, animal coronaviruses can infect people, and then spread person to person. This is the case with the virus that causes COVID-19.
The first case of COVID-19 occurred in December 2019, in China. In March 2020, Covid-19 was declared a pandemic by the WHO
How does COVID-19 spread?
The virus can spread through droplets released in the air when a person infected with the virus coughs, sneezes, or talks.
It’s also possible for a person to get COVID-19 by touching a surface or object that has the virus on it, and then touching their mouth, nose, or eyes.
Spread is more likely when people are in close contact with one another (within about 6 feet)
What percent of people with COVID-19 have a moderate infection similar to a cold or the flu?
80% of people with COVID-19 have a mild to moderate infection. Some cases of COVID, however, can be more severe.
Is COVID-19 like the flu?
There is a lot that isn’t known yet about COVID-19 because its a new virus. While originally thought to be similar to the flu, we now know that it more sever than the flu for many people, especially those with pre-existing medical conditions and certain health issues.
What are the symptoms of COVID-19?
Fever or chills Cough Shortness of breath or difficulty breathing Fatigue Muscle or body aches Headache New loss of taste or smell Sore throat Stuffy or runny nose Nausea or vomiting Diarrhea
How can you reduce your risk of getting COVID-19?
- Clean hands often
- Avoid touching your face
- Avoid close contact
- Cover mouth and nose with a cloth face cover when around others
- Cover coughs and sneezes
- Clean and disinfect frequently touched surfaces
Does COVID-19 only affect older people, or are younger people at risk?
Anyone can be at risk for infection, but certain populations are at higher risk for developing sever illness. These include:
- Older adults (over 65 years of age
- People with underlying conditions such as:
- Chronic lung disease
- Moderate to severe asthma
- Heart conditions
- Severe obesity
- Diabetes
- Liver disease
- Immunocompromised people
Children do not appear to be at higher risk than adults.
Are antibiotics effective in preventing and treating COVID-19?
No. Antibiotics do not work against viruses, they only work on bacterial infections.