Bei einee Kreuzimpfung bin ich eher skeptisch - aktuell schreibt die CDC dazu
In general, people are considered fully vaccinated:
±
- 2 weeks after their second dose in a 2-dose series, such as the Pfizer or Moderna vaccines, or
- 2 weeks after a single-dose vaccine, such as Johnson & Johnson’s Janssen vaccine
± This guidance applies to COVID-19 vaccines currently authorized for emergency use by the U.S. Food and Drug Administration: Pfizer-BioNTech, Moderna, and Johnson & Johnson (J&J)/Janssen COVID-19 vaccines. This guidance can also be applied to COVID-19 vaccines that have been authorized for emergency use by the World Health Organization (e.g. AstraZeneca/Oxford).
Quelle CDC
Da gehe ich auf Nummer sicher und werde auf jeden Fall darauf bestehen auch in der 2. Impfung Astra zu bekommen