Learning from serosurveillance for SARS-CoV-2 to inform pandemic preparedness and response.

"SAM reports grants from the Germany Ministry of Health via the Global Health Protection Programme. AA reports grants from the UK Department of Health and Social Care, Foreign, Commonwealth and Development Office, the Medical Research Council, the Wellcome Trust, the EDCTP2 programme supported by the European Union, and the Bill & Melinda Gates Foundation. RKA reports funding from the Public Health Agency of Canada through Canada's COVID-19 Immunity Task Force, the WHO Health Emergencies Programme, the Robert Koch Institute, the Canadian Medical Association, and Open Philanthropy; consulting fees from the Bill & Melinda Gates Foundation Strategic Investment Fund; and he was previously employed as a Senior Policy Advisor at Health Canada. AC reports funding from the Bill & Melinda Gates Foundation through Oxford University. EWK reports funding from the Bill & Melinda Gates Foundation and the UK Foreign, Commonwealth and Development Office. RO reports funding from the Ministry of Health, Government of Germany. SS reports funding from the Public Health Agency of Canada through Canada's COVID-19 Immunity Task Force, the WHO Health Emergencies Programme, and the Robert Koch Institute. KAS reports funding from WHO and the Robert Koch Institute and travel support from the Bill & Melinda Gates Foundation. MW reports funding from Canada's COVID-19 Immunity Task Force via the Public Health Agency of Canada, WHO, the Canadian Medical Association Joule Innovation Fund, and the Robert Koch Institute. AKZ reports funding from the Bill & Melinda Gates Foundation through Oxford University. All the other authors declare no competing interests."

"SAM reports grants from the Germany Ministry of Health via the Global Health Protection Programme. AA reports grants from the UK Department of Health and Social Care, Foreign, Commonwealth and Development Office, the Medical Research Council, the Wellcome Trust, the EDCTP2 programme supported by the European Union, and the Bill & Melinda Gates Foundation. RKA reports funding from the Public Health Agency of Canada through Canada's COVID-19 Immunity Task Force, the WHO Health Emergencies Programme, the Robert Koch Institute, the Canadian Medical Association, and Open Philanthropy; consulting fees from the Bill & Melinda Gates Foundation Strategic Investment Fund; and he was previously employed as a Senior Policy Advisor at Health Canada. AC reports funding from the Bill & Melinda Gates Foundation through Oxford University. EWK reports funding from the Bill & Melinda Gates Foundation and the UK Foreign, Commonwealth and Development Office. RO reports funding from the Ministry of Health, Government of Germany. SS reports funding from the Public Health Agency of Canada through Canada's COVID-19 Immunity Task Force, the WHO Health Emergencies Programme, and the Robert Koch Institute. KAS reports funding from WHO and the Robert Koch Institute and travel support from the Bill & Melinda Gates Foundation. MW reports funding from Canada's COVID-19 Immunity Task Force via the Public Health Agency of Canada, WHO, the Canadian Medical Association Joule Innovation Fund, and the Robert Koch Institute. AKZ reports funding from the Bill & Melinda Gates Foundation through Oxford University. All the other authors declare no competing interests."