I also would like to know this, especially about JHU. I heard people having already received interview invitations or rejections, but I haven't heard anything from JHU since I submitted my application.
Thank you so much for sharing. I am also an international applicant. My master's degree in Public Health was in Health Management and Policy, and I am applying for Epidemiology Ph.D. this year. I think this has put me in a disadvantageous situation, not having a master in Epidemiology. I contacted a professor at JHU before application. Since haven't heard anything back yet, thinking about whether should reach out that professor again.