* participants who have received boosting vaccination through other means. * any significant acute or chronic medical condition, situation or circumstance that in the opinion of the pi/designee makes the participant unsuitable for participation in the study, or jeopardises the safety or rights of the participant * current participation in any other research studies that would interfere with the objectives of this study. the determination of whether participation in another study would be exclusionary for a given participant will be made by the pi/designee. * participants with a history of heparin-induced thrombocytopenia or tts

* participants who have received boosting vaccination through other means. * any significant acute or chronic medical condition, situation or circumstance that in the opinion of the pi/designee makes the participant unsuitable for participation in the study, or jeopardises the safety or rights of the participant * current participation in any other research studies that would interfere with the objectives of this study. the determination of whether participation in another study would be exclusionary for a given participant will be made by the pi/designee. * participants with a history of heparin-induced thrombocytopenia or tts

participants who have received boosting vaccination through other means. any significant acute or chronic medical condition, situation or circumstance that in the opinion of the pi/designee makes the participant unsuitable for participation in the study, or jeopardises the safety or rights of the participant current participation in any other research studies that would interfere with the objectives of this study. the determination of whether participation in another study would be exclusionary for a given participant will be made by the pi/designee. participants with a history of heparin-induced thrombocytopenia or tts

participants who have received boosting vaccination through other means. any significant acute or chronic medical condition, situation or circumstance that in the opinion of the pi/designee makes the participant unsuitable for participation in the study, or jeopardises the safety or rights of the participant current participation in any other research studies that would interfere with the objectives of this study. the determination of whether participation in another study would be exclusionary for a given participant will be made by the pi/designee. participants with a history of heparin-induced thrombocytopenia or tts