Concerns Emerge in Maine Over Tuberculosis Cases

There are growing worries in Maine as three individuals in the state have tested positive for tuberculosis, a disease known for its severity.

Each of the diagnosed patients has an active form of the disease, and intriguingly, there doesn’t seem to be any link between them—implying they were infected through different means.

According to officials, these cases are located in the Greater Portland area, and efforts are currently in progress to identify and isolate those who had close contact with the patients.

These developments come at a time when tuberculosis cases in the U.S. are on the rise. In 2024, there were 10,347 reported infections—a notable increase of eight percent compared to the previous year and the highest number since 2011 when 10,471 cases were documented.

Despite this uptick, officials assure that the risk to the general public remains low.

The World Health Organization ranks tuberculosis as the deadliest disease globally, claiming around 1.25 million lives annually, primarily in developing nations.

This disease carries a high fatality rate; untreated patients can face up to a 50% chance of dying. For comparison, COVID-19 has a fatality rate of less than one percent, while measles and Legionnaire’s disease see rates around 10% for those not treated.

Back in the 18th and 19th centuries, tuberculosis was a dire threat due to the absence of treatments, but today, it can be prevented through vaccines and treated effectively with antibiotics.

Interestingly, tuberculosis-related deaths in the U.S. dropped dramatically from over 16,000 in the 1950s to about 550 each year now.

Most cases in America are attributed to immigration or travel from foreign regions, according to the CDC, with many patients coming from outside U.S. borders.

Details surrounding the Maine cases, such as the patients’ identities and specific locations, have not been disclosed.

The state’s CDC announced these infections recently, urging residents to be alert for symptoms like a chronic cough that persists for over three weeks.

While the infections are classified as active, meaning the bacteria is multiplying in the lungs, it’s unclear exactly when the individuals contracted the disease.

However, they reaffirmed that the risk to the wider public remains low.

Dr. Dora Anne Mills from MaineHealth stated that tuberculosis only spreads through close, prolonged contact with someone who is infectious. She emphasized that most people have little cause for concern, noting that “it’s not easily transmitted like shaking hands or sharing personal items.” In fact, it can take a lot of time for a healthy person living in the same household as an infected individual to contract it.

Speculation arose online linking these cases to a local shelter for asylum seekers, but officials confirmed there is no evidence supporting this claim.

Currently, authorities do not classify these cases as an outbreak, which would typically mean more instances than expected within a specific population.

This year, Maine has reported 28 cases of tuberculosis, just shy of the 39 cases recorded in 2024. In comparison, 26 cases were reported the previous year, but it’s uncertain if this trend will lead to a record-setting year.

Children, the elderly, and individuals with compromised immune systems are particularly at risk for infection.

Initial symptoms may include a persistent cough, which might sometimes produce blood, as well as chest pain. Other signs could be unexplained weight loss, fever, night sweats, and a loss of appetite.

If left untreated, the disease can escalate to severe breathing difficulties and may impact other organs, leading to serious complications.

Respiratory failure or severe lung damage can be fatal, as it hinders the body from receiving enough oxygen.

Fortunately, doctors can effectively treat tuberculosis with antibiotics and can provide a vaccine known as the BCG vaccine. While this shot isn’t commonly offered in the U.S. due to low prevalence, it can be requested for children, leaving a small scar, which indicates a successful vaccination.

In adults, however, the vaccine’s effectiveness decreases and there’s potential for a false positive on tuberculosis tests.

In many developing countries, the vaccine is routinely given to children under the age of 16.