Do you have questions about vaccination against COVID-19?


Vaccination is the latest tool to help end the pandemic. One to One Health’s COVID Services Team has collected the following facts to help you make your own decision on vaccination. Please take the time to educate yourself and understand these facts about the vaccines.


  • There are currently three vaccines available in the United States.
  • The vaccines are free, developed through funding from tax payer dollars.
  • You won't get COVID-19 from the vaccines.
  • No deaths are currently linked to vaccines for COVID-19.
  • No conditions preclude vaccination. Only previous severe allergic reactions cause concern at this time, and merit consultation with a physician familiar with vaccines and allergies and your personal medical history prior to vaccination.
  • Health professionals and scientists alike are in agreement: the best vaccine is the one in your arm.
  • Get the vaccine when you have the opportunity. Do not try to decide which brand is best—they all are effective.

All vaccines currently available in the US are safer than COVID-19.
All vaccines currently available in the US lessen the severity of or prevent COVID-19.


The platform for the mRNA vaccines was developed in the late 1990’s and has been in use
since 2004.

Decades of work has gone into the mRNA platform for vaccines. Production has been accelerated
by the financial contributions of both the private and public sector for COVID-19.

The current mRNA vaccines were first prepared and tested in humans in February of 2020.

The standard phases that vaccines undergo for approval in the US were overlapped, not eliminated, to facilitate development. Nothing was skipped.

Enrollment of tens of thousands of people happened in just a few weeks because of the pandemic, a task that normally takes years.


If you have had COVID-19, you should still be vaccinated. The immune response of infection is minimal compared to the robust immune response generated by vaccination, and is likely
more effective for long-term, memory-based immunity.

If you have had COVID-19 and are out of isolation, there is no restriction or waiting period for when you can receive the vaccine, except if you have received monoclonal antibodies to
treat COVID-19 in which case you should wait 90 days from that infusion.

If you have COVID-19 and have symptoms, you should wait to be vaccinated until recovered from illness and meet the criteria for discontinuing isolation.

If you are infected with SARS-CoV-2 and have no symptoms of COVID-19, you should wait until your isolation period is over before getting vaccinated.

One to One Health recommends waiting 3 weeks from infection, if possible, to get your vaccine. The vaccine may act like a “boost”, improving the immune response to natural infection.


If you are pregnant, you may choose to be vaccinated when it’s available. There is currently no evidence that antibodies formed from COVID-19 vaccination cause any problem with pregnancy, including the development of the placenta.

If you are are trying to become pregnant now or plan to try in the future, you may receive the COVID-19 vaccine. There is no evidence that fertility problems are a side effect of COVID-19

If you are breast feeding, there is no contraindication to vaccination. Antibodies to SARSCoV- 2 will be passed to your infant in breast milk.

Over 50,000 women have reported becoming pregnant after vaccination, with a substantially lower incidence of miscarriage than expected.


There are no known medications that interact with these vaccines.

Alcohol has no known effect on vaccination.

There are no medications and no chronic medical conditions at this time that contraindicate vaccination.

There is no information on long term side effects of the vaccines as they have only been in development for about a year. None are anticipated as these platforms, in use since the early 2000’s, have had none.

Taking acetaminophen or ibuprofen after vaccination to relieve flu-like symptoms related to vaccination is safe and does not inhibit the vaccine’s effectiveness. Premedication prior to vaccination is not indicated.

Once fully vaccinated, you may become infected with SARS-CoV-2, the virus that causes COVID-19, but studies of millions of people demonstrate that the vaccines create an immune response that helps prevent development of COVID-19, or lessens its severity.


We do not know at this time how long your vaccination will last, but experience with SARSCoV (also known as SARS-1) indicates about two years.

Boosting your vaccine with a different kind of vaccine, including oral options, may be in the future but details remain unknown at this time. Given available data, we believe it is likely in
about two years.

Vaccination with the mRNA vaccines and the J&J viral vector vaccine generates the same immune response to all tested variants at this time.

Development of more variants that could elude the current vaccines is possible, and would require boosting. Long term immunity shows to be unaffected in studies to date.

Vaccination stops the spread of disease. If enough people are vaccinated, and the vaccines are mostly effective, there will be less virus around to infect people as fewer people are going
to be infectious. Additionally, because vaccinated people, when infected, have been shown have low viral loads or their high viral load is only present for a short period of time, it may
spread less easily as well. These data, while encouraging, are still being collected, but vaccination changes the odds in favor to stop the spread of the disease.


Our population is currently in a transition from everyone being unvaccinated to our population being protected by vaccine. It’s important to continue following mitigation protocols. Continue to wear a mask and wear it properly and maintain social distances in public situations, and wash your hands often.

Developing spaces for vaccinated people is problematic in many ways, and One to One Health does not recommend that practice.

Once everyone has had the opportunity to receive a vaccine and for their immune system to have an appropriate response, masks and other mitigation techniques will not be necessary as a public directive. “Fully vaccinated” is defined as vaccination plus boost plus two weeks for the mRNA vaccines, and two weeks after vaccination with the Johnson and Johnson vaccine, according to the CDC. The data indicate that the J&J vaccine’s greatest prevention occurs after 50 days post vaccination, and two weeks after the boost with the mRNA vaccines.

Interactions between vaccinated individuals that can now resume with lowest risk include:

  • Car rides, no limits on number of passengers
  • Meals
  • Meetings
  • Family visits
  • Private plane rides
  • Sports and workouts
  • Side-by-side work (desks, lab bench, kitchen)

Asking individuals to reveal vaccination status on condition of an activity is not recommended.

Vaccinated people, if meaning fully-exposed to COVID-19, are not required to quarantine for the first 90 days. One to One Health believes the elimination of quarantine will be extended as data accumulates.


SARS-CoV-2 is less likely spread on surfaces than initially thought a year ago. Previous focus on cleaning products and sanitizing protocols did not seem to impact its transmission,
but certainly have affected infectious diseases overall. One to One Health currently recommends hand washing in and out of your facility for the day, as well as the basics of hand hygiene
before meals and after toileting. Surface cleaning is best done daily, with frequent use areas being cleaned mid-day if needed.

Contact tracing for COVID-19 still includes 6 feet as the meaningful distance, masked or not. One to One Health agrees with the 3 feet rule for schools, advising businesses to continue
masking, distancing, and dedensifying spaces as a layered strategy to prevent spread of disease until such time as there is minimal SARS-CoV-2 present within our communities.

There are currently few treatments for COVID-19:

  • Monoclonal antibody cocktails given in the first 10 days of illness to individuals who have a high risk of severe disease
  • Steroids can help severe disease in the second to third week
  • Tocilizumab added to steroids in severe disease helps 1 in 6 cases.


One to One Health recommends vaccination against COVID-19, and all of us are immunized. We recommend you make vaccination a priority, and get it when it is available without delay for other activities. If you still have questions, get them answered by emailing us or contacting your personal physician.

The Medical Directors of COVID Services of One to One Health

One to One Health