The United States has recorded the first childhood death from measles since 2015, amid an outbreak that has affected several communities in West Texas. This unfortunate event highlights the resurgence of a highly contagious and vaccine-preventable disease.

The decline in immunization rates has favored the reappearance of outbreaks in various parts of the world, generating concern in the public health sector. In this article, we will analyze the causes, the evolution of the outbreak, and prevention measures.

Measles outbreak in the US
The current measles outbreak in the United States is concentrated in the state of Texas, particularly in communities with low vaccination rates. To date, 146 confirmed cases have been reported in nine counties, with 20 hospitalizations. The spread of the virus has been particularly severe in Gaines County, where a Mennonite community has vaccination rates below the national average.

This resurgence of measles coincides with a global trend of declining vaccination coverage, attributed to misinformation about vaccines and disruptions in immunization programs during the COVID-19 pandemic.

Measles: Causes and Risks
Measles is a highly contagious viral disease caused by the measles virus, belonging to the Paramyxoviridae family. It is transmitted through respiratory droplets that can remain in the air for up to two hours, facilitating its spread in closed spaces.

Initial symptoms include high fever, cough, runny nose, and conjunctivitis, followed by the appearance of Koplik spots on the oral mucosa and, later, a characteristic rash. While most people recover without complications, measles can lead to pneumonia, encephalitis and, in some cases, death.

The World Health Organization (WHO) has warned about the increase in measles cases globally, noting that the lack of vaccination in large sectors of the population puts unimmunized children and adults at risk.

Importance of vaccination in preventing measles
The measles, mumps and rubella (MMR) vaccine is safe and highly effective. It is recommended that the first dose be administered between 12 and 15 months of age and a second between 4 and 6 years of age. This immunization not only protects vaccinated individuals, but also contributes to collective immunity, preventing the spread of the virus in the community.

The Centers for Disease Control and Prevention (CDC) has reported that vaccination rates have declined in several regions of the US in recent years, falling below the 95% needed to ensure collective protection. Lack of vaccination in vulnerable sectors has been the main factor in the resurgence of this disease.

Response actions to the outbreak
In response to the measles outbreak in Texas, health authorities have intensified vaccination and awareness campaigns. Health brigades have been deployed to offer immunizations in the most affected communities and reinforce epidemiological surveillance. In addition, the CDC is monitoring the situation and working in coordination with state health departments to prevent the spread of the virus to other regions.

Information campaigns seek to counteract misinformation about vaccine safety by promoting the importance of immunization in preventing infectious diseases.

Conclusion
The death of a child from measles in the United States, the first in nearly a decade, highlights the urgency of strengthening vaccination and raising awareness of the seriousness of this preventable disease. Declining immunization rates have led to outbreaks in several regions of the world, demonstrating that measles remains a threat when vaccination coverage is insufficient.

Health authorities continue their efforts to contain the outbreak in Texas and prevent it from spreading to other communities. Vaccination remains the most effective tool to prevent measles and its complications, so it is essential to promote its application in children and adults.