John’s Substack mostly covers SARS-CoV-2, Immune System and Respiratory Infections. Based on 2 issues we scanned in the last 6 months, these 1 newsletters cover the most similar ground. The closest match is The Education Daly, which also writes about Covid-19.
Ranked by topic overlap: newsletters score higher when they share distinctive topics, not just broad ones everyone covers.
Track topics across 1,000+ newsletters and get alerts when they surge. Free to start.
Sign up free