Measles outbreak in the US, the worst since 1991, exposes the fragility of American public health
With more than 4,400 cases and four deaths in 2025, the country sees vaccination coverage drop and experts warn of risk in future health emergencies
BY THE X-TRADER NEWS NEWSROOM · REPORTING FROM CNBC TELEVISION · 3 MIN
More than two decades after measles was declared eliminated, the United States has recorded more than 4,400 cases and four deaths from the disease this year, the worst outbreak since 1991, according to a report from CNBC Television. For public health experts interviewed by the channel, the biggest concern goes beyond the return of measles: the episode reveals the country's ability to respond to other infectious threats.
Vaccination coverage below the safety level
The MMR vaccine (measles, mumps and rubella, known as MMR) is around 97% effective after two doses. Still, vaccination coverage in American kindergartens fell to 92.4%, well below the 95% threshold recommended to prevent sustained transmission of the disease.
In practice, around 280,000 children started school without documented protection against measles. According to CNBC Television, the vast majority of parents still vaccinate their children, but concentrated communities with low coverage are pushing the number of cases up.
The problem, according to the report, is not limited to vaccination rates. The country is facing a decline in trust in public health institutions, misinformation about vaccines, overburdened health departments and increasing difficulty in convincing the population to adopt measures that protect themselves and others.
Government decisions and warning of new threats
The situation, according to the channel, is worsened by measures taken by Donald Trump's government that alter and weaken the childhood vaccination schedule, such as an executive order in August that suggested separating the MMR vaccine, described as highly safe and effective, into individual doses. The administration also cut jobs at the CDC and federal funding that supports states' public health infrastructure.
Epidemiologist Jennifer Nuzzo of Brown University has called measles the canary in the coal mine, both for other vaccine-preventable diseases and for the country's ability to respond to sudden infectious emergencies.
Vaccination rates against other childhood diseases, such as polio and whooping cough, have also declined in recent years. Researchers who used simulation models indicate that significant drops in childhood immunization could lead to millions of cases of diseases largely prevented from occurring in the country by vaccines, such as rubella and polio.
There is also concern that failures in surveillance, coordination and public trust will complicate the response to entirely new pathogens, especially when scientists still know little about how the virus spreads, its severity and its treatment.
What does this mean for the market
The transcription does not contain data on effects on the stock market, interest rates, dollars or public accounts. The central alert, however, has implications for those who follow the business environment: cuts in public health structures and loss of capacity to respond to outbreaks increase uncertainty surrounding possible future health crises, an issue that usually weighs on economic activity and market risk assessment.
The report's warning is straightforward: having the tools to prevent a disease is not enough if the systems and public cooperation needed to use them begin to deteriorate. It remains to be seen, according to CNBC Television, whether the United States will be able to correct these vulnerabilities before the next public health threat.
Automatically translated from Portuguese.
