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Epidemiology, Broadly Speaking

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Broadly Epi

Public health, clearly explained

Broadly Epi helps people stay current on public-health news, understand the ideas behind the headlines, and build practical skills for public-health work. Our reporting, explainers, and tutorials leave sensationalism behind and make room for clear, usable understanding.

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Epi Explained

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The painting "14 Juillet, fête forain" by Ferdinand du Puigaudeau captures a vibrant outdoor festival scene during the celebration of Bastille Day. The foreground teems with figures, both adults and children, dressed in period attire, creating a lively sense of movement. The crowd is densely packed, with visible interactions, laughter, and lively chatter. In the background, a striking illuminated archway adorned with shimmering lights draws the eye towards the sea, bathed in soft twilight hues. A colorful array of kites flutters in the sky, adding a playful energy to the composition. The use of expressive brushstrokes and a palette of blues, greens, and pops of warmer colors contributes to the festive atmosphere. Tall trees frame the scene, enhancing the sense of depth and enclosure, while the overall impression is one of joyous celebration, communal spirit, and the beauty of summer evenings. The artwork masterfully blends light and shadow, creating a captivating contrast and inviting viewers to immerse themselves in the lively ambiance of the fair.

Epi Explained

Epi Explained: Understanding Age Adjustment

Learn why age adjustment is used, how direct standardization works, and how to interpret comparisons between populations with different age structures.

January 21, 2026

History

Explore public health history
Historic photograph of a large group of Diné captives under U.S. Army guard in an open yard at Fort Sumner, with an adobe building behind them.

History

Bosque Redondo: The Long Walk as Public Health History

On June 1, 1868, Diné leaders secured a treaty that made return from Bosque Redondo possible after a U.S. campaign of forced removal and confinement—an engineered health catastrophe whose history centers land, sovereignty, and survival.

September 7, 2026

Data & Code

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Ships with white sails on the Seine at Rouen, painted by Claude Monet.

Epidemiologic Calculations

How to calculate an odds ratio in Python

Build a 2x2 contingency table in Python, calculate an odds ratio and 95% confidence interval by hand, and confirm the result with scipy.stats.fisher_exact. Uses a self-contained fictional case-control study with no external files required.

September 7, 2026 · Python

An arch-shaped painting depicting a serene medieval scene with monks working indoors. On the left, a monk is seated and focused on writing at a slanted desk, while on the right, two monks are collaborating at a table. The room is softly lit, highlighting the contemplative atmosphere, with arched windows and a simple interior. Ornate mosaic patterns decorate the arch's frame.

Data Import & Management

Text data types for NLP in Python

Work through Python examples of strings, lists, dictionaries, DataFrames, tokens, sparse matrices and embeddings.

December 13, 2024 · Python

Study Center

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The artwork titled "Adam and Eve Tavern, Old Chelsea" by James Abbott McNeill Whistler depicts a serene riverside scene. In the foreground, several boats with sails are moored along the water’s edge, suggesting a bustling yet tranquil atmosphere. The boat on the left is smaller, while a larger vessel is positioned on the right, both rendered with intricate line work that conveys texture and detail. The background features a row of historical buildings, characterized by their distinct rooftops and windows, creating a sense of architectural charm. The Adam and Eve Tavern stands prominently among the structures, identifiable by its signage, which hints at the establishment's name. The buildings are sketched in fine lines, emphasizing their age and character, with a mix of gabled roofs and chimneys. A castle-like structure can be seen atop a hill in the distance, adding depth to the composition. The sky is lightly shaded, suggesting a soft light that enhances the overall mood of the scene. The etching technique gives the artwork a delicate quality, with careful attention to light and shadow that highlights the reflections in the water, adding a sense of movement and fluidity. Overall, the piece captures a moment in time at this historical location, blending architecture and nature harmoniously.

Data, Analytics & Informatics

Methods to reduce bias

Compare methods to reduce bias across recruitment, assignment, measurement, analysis and reporting, with worked standardization examples and CPH practice questions.

January 27, 2026 · 12 minutes

An abstract painting with loose, expressive brushstrokes in deep blues, teal, pale green, ochre, and soft pink. The composition suggests organic, flowing forms without clear figures, with layered paint, drips, and textured marks creating a sense of movement and emotional intensity.

Communication

Audience analysis and segmentation

CPH exam review: identify audience needs and barriers and use segmentation to guide a communication approach.

January 20, 2026 · 9 minutes