A senior Italian health official said
Wednesday that increasing the time between the first and second
doses of the Pfizer COVID-19 vaccine from three weeks to up to
six is not problematic after an official from the pharmaceutical
company suggested it was best to stick to span of 21 days.
"I say this very clearly as a doctor," Franco Locatelli, the
president of Italy's Higher Health Council (CSS) and the
coordinator of the CTS expert panel advising the government on
its response to the coronavirus, told RAI television.
"Extending the period between administration of the first and
the second doses to the sixth week, so 42 days, does not impair
the effectiveness of the immunization in the slightest and it
enables us to give out more doses of the vaccine".
On Tuesday Pfizer Italia Medical Director Valeria Marino said
that her company's COVID vaccine was designed to be given in two
doses three weeks apart.
But on Wednesday the company stressed that "recommendations on
alternative dosage regimes are the competence of the health
authorities".
Locatelli said he understood Pfizer 's "protective attitude"
regarding studies done on the three-week period between doses.
But he added that "studies in real life have shown its
effectiveness after a period of 42 days too.
"So statements like yesterday's only create concern and it would
be desirable to avoid them".
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