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New Delhi : The World Health OrganisationÂs first of its kind release of surveillance data on antibiotic resistance reveals high levels of resistance to a number of serious bacterial infections in both high- and low-income countries.
WHOÂs new Global Antimicrobial Surveillance System (GLASS) reveals widespread occurrence of antibiotic resistance among 500 000 people with suspected bacterial infections across 22 countries.
The most commonly reported resistant bacteria were Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, and Streptococcus pneumoniae, followed by Salmonella spp. The system does not include data on resistance of Mycobacterium tuberculosis, which causes tuberculosis (TB), as WHO has been tracking it since 1994 and providing annual updates in the Global tuberculosis report.
Among patients with suspected bloodstream infection, the proportion that had bacteria resistant to at least one of the most commonly used antibiotics ranged tremendously between different countries  from zero to 82%. Resistance to penicillin  the medicine used for decades worldwide to treat pneumonia  ranged from zero to 51% among reporting countries. And between 8% to 65% of E. coli associated with urinary tract infections presented resistance to ciprofloxacin, an antibiotic commonly used to treat this condition.
ÂThe report confirms the serious situation of antibiotic resistance worldwide, says Dr Marc Sprenger, director of WHOÂs Antimicrobial Resistance Secretariat. ÂSome of the worldÂs most common  and potentially most dangerous  infections are proving drug-resistant, adds Sprenger. ÂAnd most worrying of all, pathogens donÂt respect national borders. ThatÂs why WHO is encouraging all countries to set up good surveillance systems for detecting drug resistance that can provide data to this global system.Â
To date, 52 countries (25 high-income, 20 middle-income and 7 low-income countries) are enrolled in WHOÂs Global Antimicrobial Surveillance System. For the first report, 40 countries provided information about their national surveillance systems and 22 countries also provided data on levels of antibiotic resistance.
Data presented in this first GLASS report vary widely in quality and completeness. Some countries face major challenges in building their national surveillance systems, including a lack of personnel, funds and infrastructure.
However, WHO is supporting more countries to set up national antimicrobial resistance surveillance systems that can produce reliable, meaningful data. GLASS is helping to standardize the way that countries collect data and enable a more complete picture about antimicrobial resistance patterns and trends.
Solid drug resistance surveillance programmes in TB, HIV and malaria have been functioning for many years and have helped estimate disease burden, plan diagnostic and treatment services, monitor the effectiveness of control interventions, and design effective treatment regimens to address and prevent future resistance. GLASS is expected to perform a similar function for common bacterial pathogens.
The rollout of GLASS is already making a difference in many countries. For example, Kenya has enhanced the development of its national antimicrobial resistance system; Tunisia started to aggregate data on antimicrobial resistance at national level; the Republic of Korea completely revised its national surveillance system to align with the GLASS methodology, providing data of very high quality and completeness; and countries such as Afghanistan or Cambodia that face major structural challenges have enrolled in the system and are using the GLASS framework as an opportunity for strengthening their AMR surveillance capacities. In general, national participation in GLASS is seen as a sign of growing political commitment to support global efforts to control antimicrobial resistance.
The need for a global surveillance system was highlighted by WHO in 2014 in the Antimicrobial resistance global report on surveillance.
In October 2015, WHO launched the Global Antimicrobial Surveillance System (GLASS) working closely with WHO Collaborating Centres and existing antimicrobial resistance surveillance networks and based on the experience of other WHO surveillance programmes. For example, TB drug resistance surveillance has been implemented in 188 countries over the past 24 years. HIV drug resistance surveillance started in 2005 and by 2017, over 50 countries had reported data on pre-treatment and acquired resistance using standardized survey methods.
Any country, at any stage of the development of its national antimicrobial resistance surveillance system, can enrol in GLASS. Countries are encouraged to implement the surveillance standards and indicators gradually, based on their national priorities and available resources.
GLASS will eventually incorporate information from other surveillance systems related to antimicrobial resistance in humans, such as in the food chain, monitoring of antimicrobial consumption, targeted surveillance projects, and other related data.
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