Covid-19 Information and News
Last updated Nov 22 2022
Symptoms of Covid-19
People with COVID-19 have had a wide range of symptoms reported – ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus. Anyone can have mild to severe symptoms.
Possible symptoms 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
This list does not include all possible symptoms. Symptoms may change with new COVID-19 variants and can vary depending on vaccination status. CDC will continue to update this list as we learn more about COVID-19. Older adults and people who have underlying medical conditions like heart or lung disease or diabetes are at higher risk for getting very sick from COVID-19.
How COVID-19 Vaccines Work
COVID-19 vaccines help our bodies develop immunity to the virus that causes COVID-19 without us having to get the illness.
Different types of vaccines work in different ways to offer protection. But with all types of vaccines, the body is left with a supply of “memory” T-lymphocytes as well as B-lymphocytes that will remember how to fight that virus in the future.
It typically takes a few weeks after vaccination for the body to produce T-lymphocytes and B-lymphocytes. Therefore, it is possible that a person could be infected with the virus that causes COVID-19 just before or just after vaccination and then get sick because the vaccine did not have enough time to provide protection.
Sometimes after vaccination, the process of building immunity can cause symptoms, such as fever. These symptoms are normal signs the body is building immunity.
Finding Credible Vaccine Information
FREE Telehealth for Covid-19 Treatment
How to Use the iHealth Covid-19 Antigen Rapid Test
How to Report a Positive Test Result from Rapid At-home Test Kits
Isolation and Quarantine for Covid-19
Mask Guidance During Covid-19, Updated Sep 12 2022
