SARS-CoV-2 in human milk is inactivated by Holder pasteurisation but not cold storage.
Gregory J Walker, Vanessa Clifford, Nidhi Bansal, Alberto O Stella, Stuart Turville, Sacha Stelzer-Braid, Laura D Klein, William Rawlinson
Journal of Paediatrics and Child Health | Published : 2020
AIM: As the COVID-19 pandemic evolves, human milk banks world-wide continue to provide donor human milk to vulnerable infants who lack access to mother's own milk. Under these circumstances, ensuring the safety of donor human milk is paramount, as the risk of vertical transmission of SARS-CoV-2 is not fully understood. Here, we investigate the inactivation of SARS-CoV-2 in human milk by pasteurisation and the stability of SARS-CoV-2 in human milk under cold storage. METHODS: SARS-CoV-2 was experimentally inoculated into human milk samples from healthy donors or into a control medium. Triplicates of each sample were layered onto uninfected cells after Holder pasteurisation (63°C for 30 min), ..View full abstract