Correction to: Scientific Reports https://doi.org/10.1038/s41598-019-52859-2, published online 11 November 2019

The Author information section in this Article is incorrect.

“These author contributed equally: Charles Feldman and Sabiha Yusuf Essack

These authors jointly supervised this work: Nontombi Marylucy Mbelle and John Osei Sekyere.”

should read:

“These authors contributed equally: Nontombi Marylucy Mbelle and John Osei Sekyere

These authors jointly supervised this work: Charles Feldman and Sabiha Yusuf Essack.”