(Starting week 1 of year 2020, Figure 1 will be discontinued.)
The figure above is a bar chart showing selected notifiable disease reports for the United States with comparison of provisional 4-week totals through September 28, 2019, with historical data. Reports of acute hepatitis A, acute hepatitis C, legionellosis, measles and mumps increased with measles increasing beyond historical limits. Reports of giardiasis, acute hepatitis B, meningococcal disease and pertussis decreased.