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I have previously contracted COVID-19. What combinations of doses are considered valid?

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The acceptable combinations and minimum intervals between doses for persons who have contracted COVID-19 before are as follows:


Timing of infection

Doses Recommended / Required

Recommended Intervals from Infection and Between Doses#

Minimum Acceptable Intervals

Infected when unvaccinated

(i.e. no prior doses)

 

Or

 

Infected after receiving one

dose but without completing

a primary vaccination

1 dose of W

Receive vaccination 3 months after infection

Receive vaccination at a minimum of 28 days after infection

2 doses of S, or,

 

1 dose of S and 1

dose of W

Receive vaccination 3

months after infection

with interval between

doses:

·         8 weeks between

doses of Sinovac-

CoronaVac, or,

·         8 weeks between

doses of Sinopharm, or,

·         8 weeks between a dose of W and a dose of S

Receive vaccination at a minimum of 28 days after infection, with a minimum interval between doses of:

·         13 days between

doses of Sinovac-

CoronaVac, or,

·         17 days between

doses of Sinopharm, or,

·         17 days between a dose of W and a dose of S

Infected after completing a

primary series

No further doses

required.

Nil

Nil

Infected after receiving a partial vaccination series of

two dose amounting to one of the following:

S-S-I, S-W-I, W-S-I

Nil

Nil

In addition to the combinations listed above, they should receive one further dose of a WHO EUL vaccine at least 150 days after the last dose to achieve minimum protection. For those who received Sinovac/Sinopharm, they should receive one further dose of a WHO EUL vaccine at least 90 days after the last dose.

 

W refers to any of the following vaccines:

  • [Pfizer/BioNTech] BNT162b2/COMIRNATY®

  • [Moderna] mRNA-1273/Spikevax

  • [Astrazeneca] Vaxzeveria AB/AZD1222 (ChAdOx1-S)

  • [Serum Institute of India] CovishieldTM (ChAdOx1 _nCov-19-S), NVX-CoV2373/Covovax)

  • [Bharat Biotech] BBV152/Covaxin®

  • [Novavax] NVX-CoV2373Nuvaxovid

 

 

S refers to any of the following vaccines:

  • [Sinopharm] SARS-CoV-2 Vaccine (VeroCell), Inactivated (lnCoV)

  • [Sinovac] COVID-19 Vaccine (Vero Cell), Inactivated/Coronavac

 

I refers to an infection episode

 

# Based on national recommendations by the Expert Committee on COVID-19 Vaccination


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