There is convincing evidence that people with high blood pressure have worst outcomes when they develop COVID-19 infections.
Is this because of the high blood pressure and the effect that it has on the cardiovascular system? Or, is it related to the medications that we use to treat high blood pressure?
The SARS-CoV-2 (the coronavirus that causes COVID-19) virus attaches to a receptor in the human body that is related to one of the enzymes that is blocked with medication to control blood pressure. Because of that relationship, there is investigation into some of those details but at this time there is not enough evidence to change anything.
If you are on blood pressure medications, do not stop taking them. Doctors are concerned that high blood pressure patients might be avoiding their medications during the coronavirus outbreak. They need to continue taking their medications unless their doctor instructs them not to.
How COVID-19 Spreads
Person-to-person spread
The virus is thought to spread mainly from person-to-person.
- Between people who are in close contact with one another (within about 6 feet).
- Through respiratory droplets produced when an infected person coughs or sneezes.
These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
Can someone spread the virus without being sick?
- People are thought to be most contagious when they are most symptomatic (the sickest).
- Some spread might be possible before people show symptoms; there have been reports of this occurring with this new coronavirus, but this is not thought to be the main way the virus spreads.
Spread from contact with contaminated surfaces or objects
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.
How easily the virus spreads
How easily a virus spreads from person-to-person can vary. Some viruses are highly contagious (spread easily), like measles, while other viruses do not spread as easily. Another factor is whether the spread is sustained, spreading continually without stopping.
Prevention and Treatment
There is currently no vaccine to prevent coronavirus disease 2019 (COVID-19). The best way to prevent illness is to avoid being exposed to this virus. However, as a reminder, CDC always recommends everyday preventive actions to help prevent the spread of respiratory diseases, including:
- Avoid close contact with people who are sick.
- Avoid touching your eyes, nose, and mouth.
- Stay home when you are sick.
- Cover your cough or sneeze with a tissue, then throw the tissue in the trash.
- Clean and disinfect frequently touched objects and surfaces using a regular household cleaning spray or wipe.
Wash your hands often with soap and water for at least 20 seconds, especially after going to the bathroom; before eating; and after blowing your nose, coughing, or sneezing.
People who think they may have been exposed to COVID-19 should contact their healthcare provider immediately.
Question about coronavirus? Ask Dr. McGeorge here.