Biggest studies on infectious disease in humans upshots that a ‘superbug” strain of typhoid fever has spread globally, and is resilient and impervious to strong antibiotics. Times reported that the study was concluded by a team of 74 scientists working in 12 different countries, worldwide. The scientists published the study in Nature Genetics, and documented the spread of typhoid resilient to antibiotics, specially the H58 family of bacteria.
Study author Kathryn Holt stated that these types of drug resistant typhoid are coming and going since the 1970s. Such sort of typhoid are caused by antimicrobial resistance genes that the bacteria picks. She said, the H58 genes are here to stay as these bacteria are stable and a part of the genome.
Reuters reported that around 30 million people, globally, are infected by typhoid. Typhoid are contagious and can spread through drinking and eating contaminated food and water. The exact symptoms of typhoid are fever, stomach pain, nausea and pink spots on the chests. When left without proper treatment, typhoid tempts to kill 20% of the all-inclusive infected patients.
Every year, around 200,000 people die globally, out of typhoid bacteria. The Centre for Disease Control and Prevention claims that the figure is genuine and the amount of people dying may increase due to the antibiotic resistant “superbug”. Although typhoid vaccines are available, their usage is restricted in developing countries by elevated costs. Unlike the H58 strain, regular strain of typhoid are treatable through general antibiotics.
The researchers on the study of such typhoid strain stated that H58 has been replacing other typhoid strains, and are entirely transforming the genetic architecture. They are saying that the newly found disease is creating an on-going epidemic and will affect millions.
Past studies have shown that resistant strain of typhoid first emerged 25 years back and originated mostly in Southeast Asia. The clone likely appeared in South Asia in 1985 and picked up resistance genes in the upcoming year. The typhoid will spread in Asia again along with the African continent.
In 2014, 728 people were diagnosed with typhoid and among them, 97% were contaminated with multidrug resistance. The antibiotic and multidrug resistant typhoid will turn its victims to more expensive antimicrobials.
