A step further towards developing Gonorrhea vaccine


https://speciality.medicaldialogues.in/a-step-further-towards-developing-gonorrhea-vaccine/

Scientific Study of Surfer Butts Reveal Drug-Resistant Bacteria in the Oceans


Surfers are known to brave bad weather, dangerously sized waves, and even sharks, for the perfect ride. But, it seems another danger of surfing has been lying in plain sight all along: ocean waters are full of drug-resistant bacteria — and surfers are most at risk.

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In a study published this weekend in the journal Environmental International, a team of researchers from the University of Exeter found that regular surfers and bodyboarders are four times as likely as normal beach-goers to harbor bacteria with high likelihoods of antibiotic resistance. This is because surfers typically swallow ten times more seawater during a surf session than sea swimmers.

The cheekily named Beach Bums study, carried out with the help of UK charity Surfers Against Sewage compared rectal swabs from 300 participants and found that 9 percent of the surfers and bodyboarders (13 of 143) harbored drug-resistant E. coli in their systems, compared to just 3 percent of non-surfers (four of 130).

World Health Organization Anti-Microbial Resistance
The World Health Organization is concerned about drug resistance.

The World Health Organization has warned that widespread drug resistance may render antibiotics useless in the face of otherwise easily treatable bacterial infections, meaning that just as in the age before Penicillin, diseases like tuberculosis, pneumonia, blood poisoning, gonorrhea, food– and water-born illnesses as well as routine medical procedures that can lead to infection, including joint replacements and chemotherapy, could once again be fatal.

 Indeed, a 2016 report commissioned by the British government estimated that, by 2050, infections stemming from antimicrobial resistance could kill one person every three seconds.

Solutions to an impending drug resistance epidemic have largely focused on prescriptions and use, but there is an increasing focus on the role of the environment in transmitting drug-resistant bacteria strains. The Beach Bums study adds important insight into how sewage, run-off, and pollution that makes its way into the oceans spread the drug-resistant bacteria.

“We are not seeking to discourage people from spending time in the sea,” says Dr. Will Gaze of the University of Exeter Medical School, who supervised the research. “We now hope that our results will help policy-makers, beach managers, and water companies to make evidence-based decisions to improve water quality even further for the benefit of public health.”

Though the study’s purpose is not to alarm beachgoers — or surfers — Dr. Anne Leonard, who led the research, tells Inverse that the risk for anti-drug resistance may actually be lower in the United Kingdom, which “has invested a great deal of money in improving water quality at beaches, and 98 percent of English beaches are compliant with the European Bathing Water Directive. The risk of exposure to and colonization by antibiotic resistant bacteria in seawater might be greater in other countries which have fewer resources to spend on treating wastewater to improve water quality.”

For surfers on this side of the pond, check out the free app available for Apple and iOS, Swim Guide, for updated water quality information on 7,000 beaches in Canada and the U.S.

Study Warns of Drug-Resistant Gonorrhea.


Story at-a-glance

  • Gonorrhea is increasingly becoming resistant to available drug treatments, and as such may soon pose a major public health threat, according to a US Centers for Disease Control and Prevention (CDC) report
  • The World Health Organization (WHO) already recognizes drug-resistant gonorrhea as “an emergency,” with several countries, including Australia, France, Japan, Norway, Sweden, and the United Kingdom, experiencing increasing infections
  • Gonorrhea is one of 18 drug-resistant superbugs identified as “urgent, serious and concerning threats” to humankind
  • Agricultural uses of antibiotics account for about 80 percent of all antibiotic use in the US; this low-dosage usage is implicated as a major contributor to the spread of antibiotic-resistant bacteria
  • Each year, two million American adults and children become infected with antibiotic-resistant bacteria, and at least 23,000 of them die as a result

Cases of the sexually transmitted disease gonorrhea have been on the decline in the US since the 1970s. However, a new report from the U.S. Centers for Disease Control and Prevention (CDC) hints that this might not be the case for long.

Gonorrhea is increasingly becoming resistant to available drug treatments, and as such may soon pose a major public health threat. Antibiotic-resistant gonorrhea first emerged when I was in medical school in the late 1970s. By the 1980s, the antibiotics penicillin and tetracycline were no longer effective against it.

Next, gonorrhea resistant to fluoroquinolone antibiotics emerged, leaving only one class of antibiotic drugs, cephalosporins, left to treat it. Now, as you might suspect, gonorrhea is fast becoming resistant to cephalosporins – the last available antibiotics to treat it.

Drug-Resistant Gonorrhea May Soon Be a Major Public Health Threat

Gonorrhea infects about 820,000 people each year in the US. Although it often causes no symptoms, it may initially cause painful urination or discharge from thevagina or penis.

It used to be easy to cure gonorrhea with antibiotics, but increasing drug-resistant strains are changing the game, making this one STD that could put you at risk of permanent health damage. If left untreated, or if unable to be treated due to drug resistance, gonorrhea can cause pelvic inflammatory disease (PID) in women, leading to:1

  • Formation of scar tissue that blocks fallopian tubes
  • Ectopic pregnancy
  • Infertility
  • Long-term pelvic and abdominal pain

In men, gonorrhea may cause pain in the tubes attached to the testicles or lead to sterility. In rare cases, gonorrhea may also infect your blood or joints, which may be life threatening.

The World Health Organization (WHO) already recognizes drug-resistantgonorrheaas “an emergency,” with several countries, including Australia, France, Japan, Norway, Sweden, and the United Kingdom, experiencing increasing infections. As the CDC reported, if cephalosporin-resistant gonorrhea begins to spread in the US, it’s likely to increase incidence rates significantly.2

According to the CDC report, there are two reasons for the likely increased incidence. First, people may stay infected longer, which increases the chances of spreading it to others. Second, and even more worrisome, they noted that drug-resistant gonorrhea may have mutated to infect people even more easily:

“Mutational changes in the organism that conferred resistance or co-occurred with resistance determinants might have supported gonococcal transmission,” the CDC noted.

The Last Remaining Treatment Option

Because of rising resistance, the CDC has changed the treatment recommendations for gonorrhea to a dual therapy involving an injectable cephalosporin and a second antimicrobial drug, given simultaneously. They describe this as “the only remaining recommended first-line treatment option for gonorrhea.”

Although cases of cephalosporin-resistant gonorrhea have not yet shown up in the US, it is already circulating in Japan and Europe — a similar trend to what happened when the last widespread resistance developed.

So as the CDC reported, it’s likely that even cephalosporins will soon become ineffective against gonorrhea. According to the CDC:3

“Neisseria gonorrhoeae has been remarkably adept at acquiring and maintaining resistance to antimicrobial drugs used for treatment, such as penicillin, tetracyclines, and fluoroquinolones (e.g., ciprofloxacin). After first spreading in Hawaii and California during the late 1990s and early 2000s, ciprofloxacin-resistant gonococcal strains became increasingly prevalent in the United States during the 2000s.

By 2007, the Centers for Disease Control and Prevention (CDC) no longer recommended ciprofloxacin or other fluoroquinolones for treatment of gonorrhea, which make the cephalosporins cefixime or ceftriaxone the only remaining recommended treatment option

the possible emergence and spread of cephalosporin resistance could eventually threaten the effectiveness of this regimen and pose a major public health challenge.”

Drug-Resistant Gonorrhea Is One of 18 Emerging Superbugs Threatening Humankind

If the idea of drug-resistant gonorrhea concerns you, you’ll be equally alarmed to know there are many other resistant organisms “walking” among us. But, unlike gonorrhea, which is transmitted primarily through sexual contact, other drug-resistant pathogens are spread more readily – through contaminated food, water, or even dust particles.

The majority of the highly dangerous bacteria are in the Gram-negative category, because that variety has body armor that makes it extremely tough. Some forms are now exhibiting “panresistance”—meaning, resistance to absolutely every antibiotic in existence. In the CDC’s report “Antibiotic Resistance Threats in the United States, 2013,” the following 18 superbugs are identified as “urgent, serious and concerning threats” to humankind:4