Adapt your vacation schedule to your vaccination appointments. This is the instruction that the Ministry of Health gave to the French for this summer.

Both doses in the same place

The rule is indeed to receive the two doses of vaccine in the same place, in his usual place of residence. Some adaptations are planned, to send more doses to tourist areas and to allow some to get their second dose in their vacation region, recognizes the ministry.

But it must remain a “exception“, usable only in case of”imperative“, so as not to cause a”disorganization“of the vaccine campaign, the ministry said during an online press briefing on May 11.

To read also: Vaccination: from when are we protected?

Six to 12 weeks depending on the vaccine

How to organize well then? As a reminder, the times between the two doses of vaccines are:

  • Six weeks (42 days) for Pfizer and Moderna messenger RNA vaccines
  • 12 weeks for the AstraZeneca vaccine.

But what happens if you exceed this deadline? Nothing catastrophic, if the overrun is counted in days. “We are not close to a week“, even advances Professor Odile Launay, infectious disease specialist at Cochin Hospital (AP-HP) in the columns of Parisian.

Some countries such as the United Kingdom or Canada have even introduced a 12-week delay between the two doses of messenger RNA. But for now, clinical data on the effectiveness of these vaccines is based on time frames of four to six weeks.

Do not delay the first dose …

If the schedules of your vaccination and your vacation do not harmonize perfectly, better still “take the first dose as soon as possible, even if it means postponing the second“, advises Odile Launay. Because the first dose is already beginning to protect the vaccinated person and in particular limits the risk of transmission of the virus.

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On the other hand, there is no question of bringing the second dose forward to schedule it before leaving on vacation for example. Because according to the High Authority of Health, if the second dose is injected too early, the body’s immune response may be lower than expected.

… nor cancel the second

Another bad idea: to cancel his second dose. Because if the first dose already provides protection, the second helps strengthen this immunity and make it last over time.

But that’s not the only problem. To shift in time too much or to skip the second dose could favor the appearance of variants. Based on data obtained in the laboratory, the Ministry of Health wrote in a January 25, 2021 note be afraid that “infection with the SARS-CoV-2 virus of whole populations which would have been incompletely immunized (and which would therefore present suboptimal levels of neutralizing antibodies) does not lead to the multiplication of the variants“.