About Me

I'm January G. Msemakweli. My path started in Mwanza, Tanzania—in a family where money was tight but curiosity wasn't.

Growing up without much margin taught me something universities don't always put in the syllabus: dignity and rigor belong in the same sentence. I carry that into every classroom I've stood in and every dataset I've touched.

Today I'm in the General Epidemiology & Methodology track of the ScM in Epidemiology at the Johns Hopkins Bloomberg School of Public Health, still animated by the same question: how do we turn careful methods into better decisions for real communities?

Education

Johns Hopkins Bloomberg SPH

ScM in Epidemiology · General Epidemiology & Methodology track · Baltimore, MD · Aug 2025 – present. Study design, causal inference, and the craft of turning messy data into evidence people can act on.

MUHAS

BSc Environmental Health Sciences · Dar es Salaam, Tanzania · Oct 2020 – Dec 2023. WES-evaluated CGPA: 3.87/4.00. Environmental risk, sanitation, and how systems—not just individuals—produce health.

From MUHAS to the Field

Fieldwork, lab benches, and the unglamorous glue of prevention.

Water Quality Research

I studied environmental health not because it sounded narrow, but because it was honest about the machinery of risk: pipes, food chains, sanitation, and the policies that hold them together. I spent a summer tracing fecal contamination through Dar's water systems—IDEXX and QIAGEN protocols, and the quiet discipline of not romanticizing a positive culture.

Ministry of Health

A year as an intern with Tanzania's Ministry of Health in Pwani: inspections alongside local teams, vaccine runs and cold chain, the unglamorous glue of prevention. It sharpened my instinct that data without logistics is just a PDF, and logistics without data is guesswork.

Mo Dewji Foundation

Data Scientist / Analyst, Department of Health, March 2025 – March 2026. Built M&E pipelines and Python–Flask tools like MoAfyaCamps so mobile health camps could capture clean data in real time.

What I Do Now

Research, applied systems, and community-engaged work across two continents.

Hopkins Research

Research assistant in the Department of Epidemiology. Building R pipelines from Spectrum modeling outputs, harmonizing data for transportability studies.

Charm City Care Connection

Baltimore Action Projects fellow through SOURCE and the Bloomberg American Health Initiative. Building geographic data systems for harm-reduction street outreach—geocoding, spatial integration, and analytic workflows. GIS as solidarity, not spectacle.

Teaching as Practice

Not ancillary to my research identity—it's where I learned what "impact" actually weighs.

Classroom

At MCHAS, I taught epidemiology and biostatistics to first-year diploma students in environmental health—designing lectures, marking scripts, and learning how fast imposter syndrome evaporates when a student finally "gets" attributable risk.

Community Outreach

Through MUHAS outreach and IPCWASH, I've stood in front of more than five thousand people talking about HIV prevention, maternal health, menstrual hygiene, and handwashing—the basics, delivered without condescension. In Kibaha, I trained health workers on waste management and safe incineration.

Tools & Publications

Code that ships, and research you can defend in daylight.

R/Shiny Applications

I build tools because colleagues shouldn't need a graduate degree in computing to get a defensible risk ratio.

  1. JMDSFCv1.0 — Dataset format converter with real-time progress monitoring
  2. RegressThat — Modified Poisson regression for binary outcomes yielding risk ratios
  3. Two-Sample MR — Mendelian randomization from GWAS summary statistics

Research Areas

First-author and collaborative pieces across multiple domains. Full list on the Publications page.

  1. Climate and infection
  2. Antimicrobial resistance
  3. One Health
  4. Laboratory and environmental health

Honors & Leadership

The moments that shaped the work.

Awards

  1. Excellent Performance in Epidemiology — MUHAS, presented by Professor Emeritus Japhet Killewo (2022)
  2. Best First Year Student in Environmental Health Sciences — Barrick Gold, Tanzania (2021)
  3. Overall Best Final Year Student in DEHS — MUHAS Vice Chancellor's award (2019)

Leadership

  1. Vice President of Education and Development — Public Health AI Society, Johns Hopkins Bloomberg SPH
  2. Director of Publicity — J.B. Grant Global Health Society, Johns Hopkins Bloomberg SPH
  3. Director of Publicity and Chair of Social Media — Bloomberg Consulting Office, Johns Hopkins Bloomberg SPH
  4. Project Coordinator — IPCWASH Club, MUHAS
  5. Publicity Officer — Students' One Health Innovation Club, MUHAS

Let's bridge the gap between data and impact.

English & Kiswahili (fluent) · French (beginner) · R, Python, SPSS, Stata

Get in Touch