US: CDC issues advisory after discovering bacteria behind rare, serious disease

The global death rate for those who contact it is 10-50 per cent


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Photo used for illustrative purposes only
Photo used for illustrative purposes only

Published: Thu 28 Jul 2022, 9:00 AM

On Wednesday, the Centers for Disease Control and Prevention (CDC) issued a health advisory to clinicians after discovering the bacteria behind a rare (but serious) disease for the first time in the continental United States.

Burkholderia pseudomallei (B. pseudomallei) was detected in soil and puddle water samples in the Gulf Coast region of southern Mississippi, during an investigation of two human melioidosis cases.

The two unrelated people lived in close geographic proximity and became sick with the disease two years apart— in 2020 and in 2022— prompting health authorities to investigate household products and the environment around their homes.

Melioidosis causes nonspecific symptoms such as fever, joint pain, and headaches, but can also cause pneumonia, abscess formation, and blood infections.

There are about 12 cases in the US per year on average, that mostly affect people who travel to tropical and subtropical regions, where the bacteria is endemic.

A 2021 cluster that included four people across four states was linked to imported aromatherapy spray that happened to be contaminated.

Most healthy people who come into contact with the bacteria do not develop melioidosis, but the global death rate for those who do is 10-50 per cent.

The CDC said people in southern Mississippi who have underlying conditions such as diabetes, chronic kidney disease, chronic lung disease, or excessive alcohol use, were to take extra precautions. These include avoiding contact with soil and muddy water, protecting open wounds with dressing, and wearing waterproof boots and gloves while gardening.

"Given the very small number of cases of melioidosis identified historically in the United States, CDC believes the risk of melioidosis for the general population continues to be very low," the agency said.


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