News, Culture & Society

Two new species of deadly ANTIBIOTIC -RESISTANT bacteria discovered in two patients’ blood in China

Scientists discover two new strains of deadly ANTIBIOTIC-RESISTANT bacteria in the blood of patients in China

  • Patients were carrying ‘previously unknown’  Enterobacteriaceae species
  • Did not respond to penicillin or cephalosporin antibiotics in the lab
  • Enterobacteriaceae species can cause meningitis and pneumonia 

Two new species of antibiotic-resistant bacteria have been discovered in the blood of patients in China.

Scientists discovered two patients were carrying unidentified species of Enterobacteriaceae that did not respond to penicillin or the cephalosporin group of antibiotics in the lab.

Enterobacteriaceae exist in the gut and are usually harmless, however, they can cause meningitis if they enter the blood or pneumonia if they get into the lungs.  

The scientists worry the emergence of new species of antibiotic-resistant bacteria will make deadly infections harder to cure, with delays in treatment often leading to sepsis. 

Two new species of antibiotic-resistant Enterobacteriaceae bacteria have been discovered in the blood of patients in China. The species did not respond to penicillin (stock)

The scientists, from Sichuan University, Chengdu, were led by Dr Wenjing Wu, from the centre of infectious diseases. 

The study comes amid growing fears of antibiotic resistance – driven by the unnecessary doling out of the drugs – which has turned once harmless bacteria into superbugs.

The World Health Organization has warned if nothing is done the world is heading for a ‘post-antibiotic’ era. 

In the US alone, around 2million become infected with antibiotic-resistant bacteria every year, resulting in at least 23,000 deaths.

Pneumonia, tuberculosis, gonorrhoea and salmonellosis are among the growing number of infections that are becoming harder to treat. 

The species – Enterobacter huaxiensis and Enterobacter chuandaensis – were found in two patients while they gave blood samples as part of routine medical care at West China Hospital. 

They were named after the region they were discovered in and the university behind the research.  

Genetic analysis of the microorganisms revealed they were ‘previously unknown’, the scientists wrote in the International Journal of Systematic and Evolutionary Microbiology.

As well as their DNA differences, the newly-discovered strains differed from other Enterobacteriaceae species by their ability to break down certain sugars and potassium salts.


Antibiotics have been doled out unnecessarily by GPs and hospital staff for decades, fueling once harmless bacteria to become superbugs. 

The World Health Organization (WHO) has previously warned if nothing is done the world is heading for a ‘post-antibiotic’ era.

It claimed common infections, such as chlamydia, will become killers without immediate solutions to the growing crisis.

Bacteria can become drug resistant when people take incorrect doses of antibiotics or if they are given out unnecessarily. 

Chief medical officer Dame Sally Davies claimed in 2016 that the threat of antibiotic resistance is as severe as terrorism.

Figures estimate that superbugs will kill 10 million people each year by 2050, with patients succumbing to once harmless bugs.

Around 700,000 people already die yearly due to drug-resistant infections including tuberculosis (TB), HIV and malaria across the world. 

Concerns have repeatedly been raised that medicine will be taken back to the ‘dark ages’ if antibiotics are rendered ineffective in the coming years.

In addition to existing drugs becoming less effective, there have only been one or two new antibiotics developed in the last 30 years.

In September, the WHO warned antibiotics are ‘running out’ as a report found a ‘serious lack’ of new drugs in the development pipeline.

Without antibiotics, C-sections, cancer treatments and hip replacements will become incredibly ‘risky’, it was said at the time.



Comments are closed.