There is no risk of infection from breast milk, according to Dr Paul Krogstad, paediatric disease researcher.
A study of 110 milk samples at a California research facility found no infectious viral particles.
There is no clinical evidence of children being infected after breastfeeding.
A small number of samples had viral RNA fragments inside of them but no replicating viruses that are capable of causing disease.
Dr Krogstad, the lead author of the study, said: “Breast milk is an invaluable source of nutrition to infants.
“In our study, we found no evidence that breast milk from mothers infected with COVID-19 contained infectious genetic material and no clinical evidence was found to suggest the infants got infected, which suggests breastfeeding is not likely to be a hazard.”
Even among the group of six percent who had viral DNA in their milk there was no evidence that it affected their children.
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Transmission through breastfeeding has been identified in a number of other viruses.
Sexually transmitted viruses such as HIV and CMV can be transmitted through other bodily fluids including blood donations and breastfeeding.
In the case of HIV, there are medications that can reduce the risk of infecting your child by 99 percent or more.
This works by reducing the viral load to below transmissible levels.