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January 26, 2021 The two doses of Moderna's Covid vaccine should be administered

within 28 days of

each other.

But, in exceptional cases for the burden of the sick in a country, the time interval can be extended to 42 days.

While the supporting data is not strong, this was the longest period used in Phase 3 testing.

Most of the volunteers received the recall after a shorter time.

However, it is not recommended to halve the dose.

This is one of the indications coming from Sage, the group of strategic consultancy experts on immunization of the World Health Organization (WHO). 



The World Health Organization (WHO) document, discussed on January 21, also recommends administering Moderna's vaccine only in facilities where cases of anaphylactic reactions can be treated, and while recognizing the importance of vaccination for women pregnant, does not recommend giving the vaccine during pregnancy, unless the benefits to the pregnant woman outweigh the potential risks.

For example, for health workers at high risk of exposure or pregnant women with other diseases that put them at risk of serious forms of Covid-19.



While there are no data on the vaccine in breastfeeding, given its mechanism of action, Sage said it is unlikely to cause any risks.

Therefore, it is recommended that breastfeeding women also be vaccinated.

It is also advisable to immunize those who have already fallen ill with Covid, both in symptomatic and asymptomatic form, but given the limited availability of vaccines, those who have had the infection in the previous 6 months can delay vaccination at the end of this period.

And again due to the scarce availability of vaccines and the lack of data on whether the vaccine reduces the risk of transmission, Sage does not recommend vaccinating travelers, unless they are among the high-risk groups identified by the WHO.