Welcome

Welcome to my personal data science website, where I focus on epidemiology and public health. On this page, I present data analyses on communicable disease incidence in New York State. The data used in these analyses are obtained from the Centers for Disease Control and Prevention (CDC) through the data.CDC.gov open data platform. The latest data are provisional and subject to updates.

I updated this page on a weekly basis.

Data Overview

The data presented on this page are weekly cases of selected infectious national notifiable diseases in the United States, including New York State. These cases are reported to the National Notifiable Diseases Surveillance System (NNDSS). The NNDSS data reported by the 50 states, New York City, the District of Columbia, and the U.S. territories are collated and published weekly as numbered tables by the CDC.

It’s important to note that the case counts listed in the tables are provisional and may change as additional information becomes available. State health departments report cases to the CDC for weekly publication, and ongoing revisions and delayed reporting can impact the numbers listed in later weeks. For a comprehensive understanding of interpreting these data, please refer to the Guide to Interpreting Provisional and Finalized NNDSS Data.

How to Use These Data

The summary data are now presented in a comprehensive table format with the following columns: * Disease: The name of the notifiable disease. * First MMWR Week with Any Cases Reported: The earliest week of the year when any cases were reported. * Latest MMWR Week with Any Cases Reported: The most recent week with reported cases. * Current Week Reported Cases: The number of cases reported for the current week. * Cumulative Reported Cases: The total number of cases reported so far for the year. * Trend: A sparkline visualization summarizing the weekly longitudinal trends in reported cases.

This table provides an at-a-glance overview of disease incidence, highlighting patterns over time and identifying changes in reporting. The trend column’s sparklines enable quick visual assessments of fluctuations or seasonality in disease activity.

The longitudinal trend graphs, displayed as line graphs, show the incidence of each disease over time. Each disease is represented by a separate line on the graph, allowing you to observe changes in disease occurrence and identify any seasonal patterns or long-term trends.

Why Are These Data Important?

These data play a crucial role in monitoring and understanding communicable diseases in New York State. By tracking the incidence of notifiable diseases, public health officials can identify outbreaks, assess the impact of interventions, and allocate resources effectively. These data inform public health policies and interventions aimed at preventing and controlling the spread of infectious diseases.

What Do These Data Show?

The table and graphs together provide a comprehensive view of the temporal and cumulative patterns of disease incidence: * First and Latest Weeks with Cases: These columns in the table help identify the duration of disease activity over the year. * Current Week Reported Cases: This column offers a snapshot of the most recent case data. * Cumulative Cases: This total highlights the overall burden of each disease. * Trend (Sparklines): The sparkline visualizations in the table illustrate how the weekly incidence has varied, revealing potential patterns, seasonality, or anomalies. * Longitudinal Trend Graphs: These graphs provide a detailed visualization of weekly case trends for each disease, allowing for a deeper understanding of changes over time and enabling the identification of specific weeks with spikes or declines.

What Do These Data Not Show?

While these data provide valuable information on the incidence of notifiable diseases, it’s important to note their limitations. The data only include cases that are reported to the CDC and may not capture the complete picture of disease incidence in New York State. Some cases may go unreported or may not meet the criteria for being included in the notifiable diseases list.

Additionally, the data are provisional and subject to updates. As more information becomes available and reporting is finalized, the case counts may change. Therefore, it’s crucial to interpret these data with caution and consider them as a snapshot of disease incidence at a specific point in time.

Implications for Public Health Practice

These data have significant implications for public health practice in New York State. By analyzing the trends and patterns in disease incidence, public health professionals can identify priority areas for intervention, allocate resources effectively, and develop targeted strategies to prevent and control communicable diseases. The insights gained from these data can inform decision-making, guide surveillance efforts, and contribute to evidence-based public health policies.

Thank you for visiting my website and exploring the data analyses on communicable disease incidence in New York State. I hope these insights contribute to your understanding of the public health landscape and support efforts to improve population health.

Executive Summary¹

[1] “Subject: Weekly Notifiable Disease Surveillance Briefing – Week 23 (ending June 7, 2026)week’s surveillance data are led by reports of Chlamydia trachomatis infection (969 cases), Gonorrhea (377 cases), and Campylobacteriosis (172 cases). Compared to the previous week, reports of Chlamydia climbed by 330 cases (51.6%), and Gonorrhea cases increased by 210 (125.7%). In contrast, reports of enteric illnesses such as Campylobacteriosis and Salmonellosis dipped by 10.9% and 12.8%, respectively. The data also show the first reported cases this year for tick-borne diseases, including Anaplasmosis (9 cases) and Babesiosis (5 cases), signaling a seasonal shift in disease patterns.notable patterns warrant particular attention this week. First, the substantial one-week increases in reported cases of Chlamydia and Gonorrhea follow unusually low counts from the prior week (639 and 167 cases, respectively). This sharp rebound may reflect a reporting artifact rather than a true surge in transmission. The preceding reporting period (Week 22) followed a holiday weekend, which could have created delays in laboratory reporting and data entry that were subsequently cleared in the current week’s totals. Therefore, these figures should be interpreted with caution until several weeks of data can establish a more stable trendline., emerging signals suggest the seasonal onset of vector-borne and foodborne diseases. This week, 9 cases of Anaplasmosis and 5 cases of Babesiosis were reported, marking the start of the transmission season for these tick-borne infections. Concurrently, Cyclosporiasis reports continued to rise, reaching 30 cases this week, a substantial increase from the 22 cases last week and only 3 cases four weeks prior. These trends are consistent with expected seasonal patterns for early summer and indicate a need for heightened clinical and public awareness.”

Summary Table