Pandemiology watch (July 22-28, 2026)

Our latest report covers data from July 22-28, 2026. This update provides an overview of communicable diseases, highlighting key trends, emerging outbreaks, and notable developments. We have included direct links to the sources referenced, allowing for deeper insight.

Published by:

PandemiX Center (Research Centre)

This is an image of an orange cell/virus.

By: PandemiX Center

Ebola

According to the INRB-UMIE BDBV on July 26, 2026, Epidemic Dashboard, the Bundibugyo Ebola outbreak in the Democratic Republic of the Congo has reached 3,262 confirmed cases and 1,437 confirmed deaths. Health authorities are also investigating 326 suspected cases and 91 suspected deaths.

According to the University of Oxford on July 24, 2026, the first volunteer has been vaccinated in the world’s first clinical trial of a vaccine against Bundibugyo ebolavirus. The Phase I trial will evaluate the safety and immune response of the vaccine, developed by the University of Oxford, as researchers continue recruiting participants.

Measles

US

As of July 24, 2026, the United States has reported 2,318 measles cases so far in 2026, according to the Center for Disease Control. In 2026, the age group 5-19 accounts for 49% of the cases (1,141), and children under 5 years account for 20% of the cases (456). Of the cases reported in 2026, 93% were unvaccinated or had an unknown vaccination status and 7% of the cases have been hospitalized (151). A total of 4,607 measles cases and three deaths have been reported to date.

Canada

According to the Public Health Agency of Canada on July 27, 2026, Canada has reported 1,107 measles cases (1,025 confirmed and 82 probable) in 2026 as of July 18. 60% of the cases occurred in children (666). Manitoba accounts for 61% of the cases (677), and Alberta accounts for 28% of the cases (311) reported so far in 2026. 86% of the cases reported in 2026 were unvaccinated (951), and 7% required hospitalization. A total of 6,532 measles cases and two deaths have been reported to date.

Influenza

According to the Centers for Disease Control and Prevention on July 24, 2026, 188 pediatric influenza deaths have been reported in the United States during the 2025-2026 flu season. In the latest weekly influenza surveillance report, one additional child death linked to influenza was reported.

H5N1

As of July 28, 2026, the Centers for Disease Control and Prevention has not reported any cases of person-to-person transmission of H5N1 in the United States. The total remains at 71 confirmed human cases and two deaths.

Mpox

From May July 22-28, 2026, there have been no significant updates on mpox outbreaks worldwide.