# Travel after vaccination? **URL:** \ **Category:** The Quarantine Zone\ **Tags:** covid-quarantine\ **Created:** [January 9, 2021, 1:45am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090 "2021-01-09T01:45:52Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 9, 2021, 1:45am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/1 "2021-01-09T01:45:52Z")
Would it be safe for me to travel to see my parents after getting both doses of one of the vaccines? My parents are in their 80s and the travel requires an airline flight (meaning time spent in two airports). Good idea? Bad idea? ---
**Author:** ![DMC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dmc/32/18049_2.png) [@DMC](https://boards.straightdope.com/u/DMC)\ **Post date:** [January 9, 2021, 1:56am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/2 "2021-01-09T01:56:09Z")
Are all three of you fully vaccinated in this scenario? ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 9, 2021, 1:58am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/3 "2021-01-09T01:58:29Z")
So far just me. But they may be able to soon. ---
**Author:** ![DMC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dmc/32/18049_2.png) [@DMC](https://boards.straightdope.com/u/DMC)\ **Post date:** [January 9, 2021, 2:04am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/4 "2021-01-09T02:04:26Z")
Until all three of you are vaccinated, I’d consider it a bad idea. I’m not sure it’s a great idea even if you are, but it’s a completely different question at that point. I’m close to having to make a similar decision (we normally visit my in-laws at least twice a year, but it’s now approaching the 1.5 year mark), but will definitely be waiting until we are all vaccinated. At that point, we’ll see where everything else stands, unless a scientific consensus is reached that the vaccinated aren’t infectious. ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 9, 2021, 2:08am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/5 "2021-01-09T02:08:22Z")
I usually visit my parents twice a year (Christmas holidays and then sometime over the summer) and haven’t been back since early January 2020. ---
**Author:** ![Courk](https://avatars.discourse-cdn.com/v4/letter/c/91b2a8/32.png) [@Courk](https://boards.straightdope.com/u/Courk)\ **Post date:** [January 9, 2021, 6:01am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/6 "2021-01-09T06:01:48Z")
The vaccine trials tested preventing symptomatic infection. They may prevent infection altogether, but that wasn’t measured, so we don’t know for sure. Thus, it could be possible that you could still catch an asymptomatic infection, which could then be spread to someone unvaccinated. ---
**Author:** ![Die\_Capacitrix](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/die_capacitrix/32/9_2.png) [@Die\_Capacitrix](https://boards.straightdope.com/u/Die_Capacitrix)\ **Post date:** [January 9, 2021, 8:30am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/7 "2021-01-09T08:30:34Z")
Theoretically my parents could be vaccinated by the end of January, latest February. I expect I probably that I won’t get vaccinated until June or so. I hope by then that things are settled enough that I can visit them this fall. I also expect that we have a lot more data about the efficacy of the vaccination against both symptomatic and asymptomatic infection. Even if I could get vaccinated by end of January, I would still wait for more people to get vaccinated to finally break the chain of infection. ---
**Author:** ![Riemann](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/riemann/32/3133_2.png) [@Riemann](https://boards.straightdope.com/u/Riemann)\ **Post date:** [January 9, 2021, 8:32am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/8 "2021-01-09T08:32:47Z")
As others have said, we don’t yet have data on how effective the vaccines are are preventing transmission _from_ a vaccinated person to others. _A priori_, the vaccines are very likely to reduce transmission to some degree; but unlikely to reduce transmission as much as the \>90% efficacy level for protection against disease. So with community spread so high at the moment, I think you do still run a significant risk of the horrific outcome of being responsible for infecting your parents. Presumably their age group should be vaccinated within a couple of months at most? I would certainly wait at least until _they_ are vaccinated. ---
**Author:** ![Stranger\_On\_A\_Train](https://avatars.discourse-cdn.com/v4/letter/s/13edae/32.png) [@Stranger\_On\_A\_Train](https://boards.straightdope.com/u/Stranger_On_A_Train)\ **Post date:** [January 9, 2021, 3:13pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/9 "2021-01-09T15:13:51Z")
> [@Riemann](#): > > s others have said, we don’t yet have data on how effective the vaccines are are preventing transmission _from_ a vaccinated person to others. _A priori_ , the vaccines are very likely to reduce transmission to some degree; but unlikely to reduce transmission as much as the \>90% efficacy level for protection against disease. > > So with community spread so high at the moment, I think you do still run a significant risk of the horrific outcome of being responsible for infecting your parents. Presumably their age group should be vaccinated within a couple of months at most? I would certainly wait at least until _they_ are vaccinated. This is exactly correct. The evidence to date does not indicate that any of the vaccines available, or inoculation by exposure to the actual virus provides sterilizing immunity (e.g. eliminates any chance of viral shedding) and give the number of people experiencing reinfection (or possibly resurgence of latent residual virus), it is all but certain that the immune response is incomplete at halting infection. Even so, vaccination does appear to provide significant protection from severe effects of the virus and sequelae from post-infection immune response, but only for those who are vaccinated. There is, of course, the confounding issue of new variants (the B.1.1.7 “Kent” mutation, 501.V2 “South Africa” mutation, and the “Cluster 5” mutations that jumped to mink and then backspilled to humans), all of which appear to be more transmissible and to which variation in vaccine immune response is unknown (e.g. if they are just variants or developed into distinct strains requiring separate inoculations). Until more is known about the transmissibility, virulence, and naive and inoculated immune response to these new variants as well as the overall potential for the SARS-CoV-2 virus to undergo spontaneous mutation producing distinct strains, it would serve well to remain cautious about close contact scenarios like airline travel. Stranger ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 9, 2021, 3:31pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/10 "2021-01-09T15:31:04Z")
> [@Riemann](#): > > So with community spread so high at the moment, I think you do still run a significant risk of the horrific outcome of being responsible for infecting your parents. Yes, obviously that is the outcome I want to avoid, although it’s been more than a year and I’d like to see them. Plus I need a break from this job, which I’m getting very tired of. Thanks all for the comments. I’ll wait a few more months, until after they are vaccinated (though their allergies may complicate things) and more data is available, and then think again about it. ---
**Author:** ![Thudlow\_Boink](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thudlow_boink/32/320_2.png) [@Thudlow\_Boink](https://boards.straightdope.com/u/Thudlow_Boink)\ **Post date:** [January 9, 2021, 3:59pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/11 "2021-01-09T15:59:35Z")
> [@Dewey\_Finn](#): > > Yes, obviously that is the outcome I want to avoid What, you worry? ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 25, 2021, 8:50pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/12 "2021-01-25T20:50:15Z")
So just to revive this thread, by the end of February, both of my parents and I will have been vaccinated, all I think by the Pfizer vaccine. I’m now trying to decide if it’s safe to travel to see them. ---
**Author:** ![Thudlow\_Boink](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thudlow_boink/32/320_2.png) [@Thudlow\_Boink](https://boards.straightdope.com/u/Thudlow_Boink)\ **Post date:** [January 25, 2021, 9:12pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/13 "2021-01-25T21:12:13Z")
Note that immunity doesn’t kick in immediately. Supposedly, it’s a week after the second dose. Cite: > **[COVID-19 Vaccines](https://www.webmd.com/vaccines/covid-19-vaccine/covid-19-vaccine)** > > Vaccines are seen as one of the best ways to stop COVID-19. Learn more about the types of vaccines, including the newly approved Novavax. > [@](#): > > ## After the required doses, how long until it takes effect and provides protection? > > That happens “about a week after the second dose," says Naor Bar-Zeev, PhD, an associate professor of international health and vaccinology and deputy director of the International Vaccine Access Center at Johns Hopkins Bloomberg School of Public Health. Once the second dose kicks in, both the Pfizer and Moderna vaccines have shown in studies to be about 95% effective. ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [January 26, 2021, 1:12am UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/14 "2021-01-26T01:12:33Z")
Nothing is “safe”. You’re trying to decide if it’s “safe enough”. That sounds like pedantic wankery, but all sorts of silly thinking intrudes, often unconsciously, when we start using absolute words to describe what’s actually probabilities. Where are you, where are they, how much risk do you & they take now? How old and how healthy are they. How important is seeing them? Bottom line: you three are not suddenly invincible as to COVID. And the COVID risk is additive to all the other risks, from runaway trolleys to drunk drivers to having a stroke. ---
**Author:** ![Ludovic](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@Ludovic](https://boards.straightdope.com/u/Ludovic)\ **Post date:** [January 26, 2021, 1:45pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/15 "2021-01-26T13:45:11Z")
> [@LSLGuy](#): > > Bottom line: you three are not suddenly invincible as to COVID. And the COVID risk is additive to all the other risks, from runaway trolleys to drunk drivers to having a stroke. But when vaccinated, the risk turns into just another variable, instead of far and away the leading cause of death and disability. ---
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [January 26, 2021, 2:50pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/16 "2021-01-26T14:50:25Z")
Agreed that the vaccine greatly reduces the COVID risk. Which in turn greatly reduces the total risk of the visit. I can hardly wait to get mine when my number comes up. I was just struck by what I perceived to be the OP’s absolutist thinking. Not knowing the rest of his thought processes, it would be hard to pitch advice or opinion at the right level. ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [January 26, 2021, 2:53pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/17 "2021-01-26T14:53:29Z")
What absolutist thinking? I haven’t seen my family in over a year and would like to do so, but obviously don’t want the visit to end with someone getting COVID. Plus I need a break after almost a year of dealing with this constantly. And note that I’m not only seeking advice here; before I do anything I’m going to talk to infection control experts. ---
**Author:** ![Dewey\_Finn](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dewey_finn/32/4222_2.png) [@Dewey\_Finn](https://boards.straightdope.com/u/Dewey_Finn)\ **Post date:** [March 8, 2021, 6:33pm UTC](https://boards.straightdope.com/t/travel-after-vaccination/930090/18 "2021-03-08T18:33:12Z")
So now I’m planning a trip home to see my parents, brother, sister-in-law and their children. It looks like everyone except my brother will be fully vaccinated soon so I’m thinking of going in April. He’s holding out because he’s trying to make sure he can get the Pfizer vaccine. Today, the CDC issued [official guidance](https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated-guidance.html) on under what circumstances fully vaccinated people can visit without masks or social distancing. So I’m looking forward to seeing my family and getting a break from work.