Yes. AIDS 2022 allows you to change your registration as follows:
If there is a change from in-person plus virtual registration to virtual registration, the difference will be refunded free of charge.
If there is a change from virtual registration to in-person plus virtual registration, the difference will be charged.
Read the terms and conditions here.
The deadline to request your change or reimbursement has been extended to 31 August. Any reimbursement request after that date will not be considered.