By Appointment Only

EvergreenHealth is following the Washington State Department of Health guidelines and vaccinating Phase 1A individuals, Tier 1 and 2, by appointment only. Phase 1A includes healthcare workers, high-risk first responders, and residents (and staff) in long-term care living facilities. Learn more about Washington’s phased roll out here.

We are currently not scheduling patients or community for COVID-19 vaccinations. Please do not call our switchboard, Healthline, contact centers or clinics about vaccine availability or vaccine appointments. Without an appointment, you will not receive a vaccine. Please do not arrive at our campus or clinics without an appointment.

EvergreenHealth will follow the criteria for vaccine eligibility as directed by our state Department of Health and as our supply of the vaccine allows. Please return to this page often as we will provide the most up-to-date information here as it becomes available.

If you received your first dose of the COVID-19 vaccine at EvergreenHealth, please check back here, on this website, for the ability to self-schedule your second dose soon.

Thank you for continuing to practice social distancing, wear a mask properly, wash your hands frequently, and follow local recommendations for the safety of everyone.


COVID-19 Vaccine Resource Library

Updated January 15, 2021

We have built this COVID-19 Vaccine Resource Library as a single source of information, from many sources, with the goal of what to expect in the coming months and year.

COVID-19 Vaccine Information from King County

This information is available in several languages, including:

Amharic | Arabic | Chinese,Simplified | Chinese,Traditional | French | Khmer | Korean | Marshallese | Oromo | Russian | Samoan | Somali | Spanish | Tigrinya | Tongan | Ukrainian | Vietnamese

COVID-19 Vaccine Information from Snohomish County

This information is available in several languages, including:

Amharic | Arabic | Chinese | Japanese | Khmer | Korean | Marshallese | Punjabi | Russian | Tagalog | Ukrainian | Vietnamese

COVID-19 Vaccine Information from CDC

From the Department of Health:


EvergreenHealth's Medical Director of Infectious Disease, Dr. Francis Riedo, offers information about the vaccine(s) and clinical trials:

COVID-19 Vaccine Q&A


What is the final Advisory Committee on Immunization Practices (ACIP) recommendation for who should receive the vaccine?

The Advisory Committee on Immunization Practices (ACIP) recommends the intervention. The Pfizer-BioNTech COVID-19 vaccine is recommended for persons 16 years of age and older in the U.S. population under the FDA’s Emergency Use Authorization. It is likely that Moderna will be approved for persons 18 years of age and older; but that has not yet been finalized by the ACIP.

Should pregnant or breastfeeding women receive the vaccine?

Currently, there are limited data available on the safety of COVID-19 vaccines for people who are pregnant. Animal developmental and reproductive toxicity (DART) studies are ongoing and studies in people who are pregnant are planned. CDC and the FDA have safety monitoring systems in place to capture information about vaccination during pregnancy and will closely monitor reports.

CDC and the ACIP have provided information to assist pregnant people with their decision to receive the COVID-19 vaccine. At this time, ACIP recommends that healthcare personnel be offered vaccination in the initial phase of the COVID-19 vaccination program. Healthcare personnel who are pregnant may choose to be vaccinated. If they have questions around getting vaccinated, a discussion with a healthcare provider might help them make an informed decision.

Will those who have been ill with COVID-19 still receive the vaccine? Do they not already have antibodies?

The CDC is stating that the Pfizer-BioNTech COVID-19 vaccine is safe and likely efficacious in people with evidence of prior COVID-19 infection, and it should be offered regardless of history of prior symptomatic or asymptomatic COVID-19 infection. This is based on the fact that it is not entirely clear how protective immunity from natural infection is nor for how long. Based on the CDC’s recommendations we are planning to offer vaccines to those who have had prior COVID-19 illness. Note: it is recommended that individuals with active COVID-19 have vaccination deferred until they have recovered from the acute illness and have met criteria to discontinue isolation.

Will this vaccine have any age restrictions?

Currently the vaccines are for 16 and above (for Pfizer) and 18 and above (for Moderna); they are looking at the 12-15 age group. We are not aware of any studies for those under age 12 and indirect assessments of efficacy may be employed in this age group. The Advisory Committee on Immunization Practices (ACIP) will have recommendations for Pfizer and Moderna vaccines shortly after the FDA (Food & Drug Administration) review is completed.

When will the vaccine be available to everyone?

As part of the vaccine distribution planning effort, the federal government and Washington State are considering many factors such as prioritization of high-risk groups, vaccine supply and distribution, logistics, safety, and clinical guidance.

On January 7, 2021, Washington DOH released new allocation prioritization guidance for the phased/tiered release of the vaccine in Washington state. You may find full details of this allocation guidance here. In short:

  • Phase 1a: 
    • Tier 1:
      • High-risk workers in healthcare settings
      • High-risk first responders
      • Residents and staff of nursing homes, assisted living facilities, and other community-based congregant living settings
    • Tier 2: 
      • All other workers at risk in healthcare settings
  • Phase 1b:
    • Tier 1:
      • All people 70 years and older
      • People 50 years and older in multigenerational households
    • Tier 2:
      • High-risk critical workers 50 years and older who work in certain congregate settings (e.g., grocery, education, childcare, corrections facilities, public transit)
    • Tier 3:
      • People 16 years and older with 2 or more co-morbidities or underlying conditions
    • Tier 4:
      • High risk critical workers under age 50 in certain congregate settings
      • People, staff, and volunteers in congregate living settings

Future phases (Phases 2, 3 and 4) are still tentative and will be based on clinical trial data, federal guidance, vaccine supply projections, and ongoing community input.

Please continue to check back here on EvergreenHealth’s COVID-19 Information Hub for additional details on when the vaccine will be available to you.


What are the typical side effects?
We’ve had tetanus shots, flu shots, shingles vaccination (for some of us) – the side effects for this vaccine are similar. You may get a sore arm. You might get a headache or muscle aches. Perhaps even a low-grade fever or some fatigue. Vaccines generate an immune response – this is part of your body’s innate immune response. Much of the current data are from phase 1 and phase 2 of the trials (small samples of people) – we will learn more when the phase 3 data are released (40,000+ people) and will update you accordingly.

According to the company’s press releases, no serious safety concerns have been reported in either the Pfizer or the Moderna trial. The side-effects profile of the Pfizer vaccine includes pain at the injection site, as well as fatigue, chills, and fever. The side effects noted in Moderna’s news release include pain at the injection site, muscle aches and headaches.

Unfortunately, these side effects can mimic COVID-19 symptoms. We just need to be very mindful that if these symptoms come on at the same time as our vaccine – it is highly likely to be the vaccine and not COVID-19.
They are transient, are an expected side effect and can be seen as a sign that your immune system is working.

Is reactogenicity typically more likely for certain patient demographics?
Reactogenicity – or side effects – from the vaccine are likely to affect younger populations. The younger you are, the more robust your body’s immune response will be. While annoying, side effects are not a bad thing – they are your body’s way of letting you know the vaccine is doing what it is supposed to do.

What is Phase 1 testing for a vaccine?
Phase 1 consists of a small number of individuals who are asked to volunteer – around 30-40 individuals. It is purely a safety trial. The sole purpose of phase 1 is to find out if we administer a vaccine, are there immediate and serious side effects.

What is Phase 2 testing for a vaccine?
Phase 2 continues to monitor safety but is also directed at immunogenicity – this is actually the measurement of antibody production in the participant. Phase 2 trials are also often dose ranging trials to determine the optimal dose both in terms of antibody production but also to minimize side effects. You want to make sure that if you give a vaccine, it will generate an antibody response in that individual.

What is Phase 3 testing for a vaccine?
Once you have decided on the appropriate dose, have confirmed safety, and have determined the vaccine actually generates a response, you want to test it for efficacy. Both the Pfizer and the Moderna vaccines went into phase 3 testing on July 27. The goal in any Phase 3 trial is to enroll a large number of individuals. In this vaccine Phase 3 testing, half are given the vaccine candidate and half are given a placebo (saline injection). Analyzing the number of individuals who contract the infection in the placebo group and in the vaccinated group helps determine how effective the vaccine is in actually preventing infection.

Wasn’t this timeline rushed?
The target was met rapidly – but not “rushed” in a way that would cut corners. The rapidity happened for many reasons. In vaccine studies, Phase 1 and Phase 2 are made up of very small numbers of people. Because Phase 1 was showing such success, Phase 2 did overlap with Phase 1 – so that sped up the timeline a bit. When a vaccine enters Phase 3 trials, MANY people are studied (for example, Pfizer enrolled over 40,000 people in Phase 3). In Phase 3, you need to get to a point where a certain prespecified number of individuals become infected. With many diseases, Phase 3 can take years! Think about meningitis, for example. Meningitis is simply not very common anymore. If a new vaccine for meningitis came today it could take millions of people and years to demonstrate efficacy. COVID-19, on the other hand, is extremely prevalent. This allowed the study to reach the prespecified number of infections very quickly. The timeline was compressed because of the large prevalence of COVID-19 across the country.

What is Messenger RNA or mRNA?
The use of messenger RNA (mRNA) is a novel technology that has turned out to be highly effective at generating an antibody response. Vaccines work by training the body to recognize and respond to the proteins or sugars produced by disease-causing organisms, such as a virus or bacteria. Traditional vaccines are made up of inactivated (killed) bacteria or viruses that cause infections. More recently vaccines are made of proteins or polysaccharide (sugar) molecules that coat the virus. These are introduced into the body to provoke the immune system into mounting a response. mRNA vaccines, in contrast, use the body’s cellular machinery to produce the viral proteins which then lead to an antibody response. They work by using mRNA, or messenger RNA, which is the molecule that essentially puts DNA instructions into action. Inside a cell, mRNA is used as a template to build a protein. To produce an mRNA vaccine, scientists produce a synthetic version of the mRNA that a virus uses to build its infectious proteins. This mRNA is delivered into the human body, whose cells read it as instructions to build that viral protein, and therefore create some of the virus’s molecules themselves. These proteins are solitary, so they do not assemble to form a virus. The immune system then detects these viral proteins and starts to produce a defensive response to them. Once the job of the mRNA is complete it disappears and does not become part of your cellular structure or DNA.


How effective are these vaccines?
The Pfizer vaccine has an efficacy rate of 95%. The Moderna vaccine has an efficacy rate of 94.5%.

Do you have to get two doses? What if you only get one dose?
Those receiving the vaccine must receive two doses to be fully immunized and protected. Everyone must get the second dose. Additionally, if two brands of vaccine become available (for example, Pfizer and Moderna), you must get your first and second dose from the same brand. The first dose primes the immune response – it’s the second dose that pushes the level of antibodies into a protective level. Having a single dose will not provide protective antibody concentrations. You need both doses of the vaccine.

What is the duration between 1st and 2nd vaccine doses?
For the Pfizer vaccine, it is 21 days (minimum); for the Moderna vaccine, it is 28 days (minimum).

How soon after the second dose will the vaccine be considered effective?
It appears that at 7-14 days post second dose, there is an adequate level of protection against COVID-19.

Do we know how long the vaccine is effective?
It is unknown at this time.

In the News: