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Understanding Covid-19 Vaccines

2/10/2021

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To better understand how COVID19 vaccines work, it helps to first know the mechanisms our bodies use to fight illness. When germs, invade our bodies, they attack and multiply. Our immune system uses several methods to fight off such infections. Our Blood contains red blood cells, which carry oxygen to tissues and white blood cells which fight infection. Different types of white blood cells fight infection in different ways:
  • Macrophages are white blood cells that are formed in response to an infection or accumulation of damaged/dead cells. Macrophages are large, specialized cells that engulf and destroy target cells.
  • B-lymphocytes are defensive white blood cells. That fight bacteria and viruses by making antibodies, which attach specific infections and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells.
  • T-lymphocytes are another type white blood cell. They recognize, attack and destroy cells in the body that have been infected.

When a person is infected with the COVID-19 virus, it can take several days or weeks for their body to make and use all the germ-fighting tools needed to overcome the infection. After the infection, the body retains some T-lymphocytes, that go act quickly if the body encounters the same virus again. Experts are still learning how long these cells remember and protect a person against the virus that causes COVID-19.
How COVID-19 Vaccines Work

COVID-19 vaccines help our bodies develop immunity to the virus 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 T-lymphocytes and B-lymphocytes that will remember how to fight that virus in the future.

It typically takes a few weeks for the body to produce T-lymphocytes and B-lymphocytes after a vaccine is administered. This means that a person can be infected with COVID-19 just before or just after vaccination and then get sick because the vaccine did not have enough time to provide protection.

Types of COVID-19 Vaccines Under Development
  • mRNA vaccines contain material from the virus that causes COVID-19. The “m” stands for messenger. The messenger RNA gives our cells instructions for how to make a protein that is unique to the virus. Our bodies recognize that the protein should not be there and build T-lymphocytes and B-lymphocytes that will remember how to fight the virus that causes COVID-19 if we are infected in the future.
  • Protein subunit vaccines Instead of the entire pathogen, subunit vaccines include only the components, or antigens, that best stimulate the immune system. Although this design can make vaccines safer and easier to produce, it often requires the incorporation of adjuvants to elicit a strong protective immune response because the antigens alone are not sufficient to induce adequate long-term immunity.
  • Vector vaccines contain a weakened version of a live virus—a different virus than the one that causes COVID-19—that has genetic material from the virus that causes COVID-19 inserted in it (this is called a viral vector). Once the viral vector is inside our cells, the genetic material gives cells instructions to make a protein that is unique to the virus that causes COVID-19. Using these instructions, our cells make copies of the protein. This prompts our bodies to build T-lymphocytes and B-lymphocytes that will remember how to fight that virus if we are infected in the future.
 
 
As of the writing of this article there are two COVID-19 vaccines available in the United States, the Pfizer-BioNTech COVID-19 Vaccine and the Moderna COVID-19 Vaccine. The Pfizer and Moderna vaccines are made using messenger RNA, or mRNA. Both options require two shots. The first shot starts building protection. A second shot a few weeks later is needed to get the most protection the vaccine has to offer.
 
Washington state is providing vaccinations in phases. To determine when you are eligible to receive a COVID-19 vaccine you can use the Washington State Department of Health Phase Finder Tool. The Phase Finder tool is designed to help people in Washington find out if they are eligible for a COVID vaccine now or if not, sign up to be notified when they become eligible. It asks a series of questions related to the four phases of vaccine distribution (living situation, age, health conditions, risk factors, work situation and zip code) to inform eligibility. You can also view a map of vaccine locations in Washington.
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    Author

    Ty Strahl
    ​
    I've been a licensed health care provider for over 30 years. I have owned and operated two care facilities in Spokane. My experience and stature as a Certified Senior Advisor (CSA)® gives my clients and referral partners the peace of mind that I will always act in my clients best interest.

    I've also served as the CEO and Executive Director for a large nonprofit therapeutic recreational center serving those with disabilities. My husband and I have owned and operated a Lifeline TeleCare agency since 2008 providing medical alerts and medication dispensers. We're passionate about helping others and look forward to finding the best senior living solution for your needs.

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  • Home
  • Settings
    • Assisted Living
    • Home Care
    • Independent Living
    • Memory Care
    • Skilled Nursing
    • Adult Family Homes
    • All Communities >
      • Aspen Quality Care
      • Avamere South Hill
      • Brighton Court
      • Brookdale Nine Mile
      • Brookdale Park Place
      • Cheney Assisted Living
      • Cherrywood Assisted Living
      • Colonial Court
      • Cornerstone Court
      • Evergreen Fountains
      • Palouse Country
      • Fairview Assisted Living
      • Fairwinds
      • Fairwood
      • Fieldstone Memory Care
      • Good Samaritan
      • Maplewood Gardens
      • Moran Vista
      • North Point Village
      • Orchard Crest
      • Pine Ridge Memory Care
      • Emilie Court
      • Ridgeview Place
      • Riverview Retirement
      • Rockwood Retirement Community
      • Rose Pointe Assisted Living
      • Royal Park
      • South Hill Village
      • Sullivan Park Assisted Living
      • Sunshine Health Facilities
      • Touchmark Assisted Living
      • Willow Grove
      • Wind River
      • Alderwood Manor
      • Franklin Hills
      • Manor Care
      • North Central Care Center
      • Providence St Joseph
      • Regency at Northpointe
      • Royal Park Health and Rehabilitation
      • Spokane Veterans Home
      • The Gardens on University
      • Spokane Assisted Living Directory
  • Locations
    • Northside Assisted Living
    • South Hill Assisted Living
    • Spokane Valley Assisted Living
  • Services
  • About
  • Senior Living Blog
  • Contact