The most deadly bacterial disease contracted by human beings is mycobacterium tuberculosis, the world's leading infectious disease with more than 1,700,000 deaths per year. As much as 13% of cases are resistant to most antibiotics, and about 6% are resistant or unresponsive to essentially all treatment.
According to the WHO, the highest priority must be placed on the first group of bacteria. This critical category includes Acinetobacter baumannii and Pseudomonas aeruginosa, both of which can cause wound infections, and the group of Enterobacteriaceae. Enterobacteria include Klebsiella, E. coli, Serratia and Proteus.
Most methicillin-resistant Staphylococcus aureus, or MRSA, infections contracted outside of a hospital are skin infections. In medical centers, MRSA causes life-threatening bloodstream and surgical-site infections, as well as pneumonia. MRSA is one of the most common antibiotic-resistant bacteria.
Enteroinvasive organisms such as Salmonella, Shigella, and enteroinvasive Escherichia coli invade and destroy mucosal epithelial cells. Death occurs as a result of dehydration and electrolyte imbalance.
Tuberculosis (or TB) has been responsible for the death of more people than any other infectious disease in history; over a billion deaths in the past 200 years. Its origin is unclear, but it infects a number of other species, including cattle.
Deinococcus radiodurans, a poly-extremophilic bacterium, isn't only radiation-resistant. These immortal animals can also die and come back to life thanks to their incredible DNA repair response.
Viruses are germs different from bacteria. They cause infections, such as colds and flu. However, antibiotics do not treat infections caused by viruses. For more information on common illnesses and when antibiotics are and aren't needed, visit Common Illnesses.
They test it to certain tolerances and the law for cleaning products says they have to meet a three log reduction. That is 99.9%. But if products killed 100%, that would be dangerous for people as it would mean that we would be exposed to products too powerful for humans.
Superbugs are strains of bacteria that are resistant to several types of antibiotics. Each year these drug-resistant bacteria infect more than 2 million people nationwide and kill at least 23,000, according to the U.S. Centers for Disease Control and Prevention (CDC).
The E. coli break down molecules of food that the human body can't disassemble on its own, and they crowd out other bacteria less suited to cooperation with a human host (and more likely to go rogue and send us back to the toilets, or worse).
The superbug in question is Acinetobacter baumannii, which the World Health Organization has classified as a “critical” threat among its “priority pathogens” – a group of bacteria families that pose the “greatest threat” to human health.
Tetanus toxin and botulinum toxin
Clostridial neurotoxins produced by Clostridium tetani (TeNT) and Clostridium botulinum (BoNT) are among the most potent toxins known; the 50% lethal toxin dose of BoNT is 0.001 g/kg body weight.
Some of the most frequently isolated bacteria in sepsis are Staphylococcus aureus (S. aureus), Streptococcus pyogenes (S. pyogenes), Klebsiella spp., Escherichia coli (E. coli), and Pseudomonas aeruginosa (P.
The pathogenic bacteria that produce exotoxins mainly include Clostridium tetani, Clostridium botulinum, Clostridium perfringens, Corynebacterium diphtheriae, Group A streptococcus, Staphylococcus aureus, Shigella dysenteriae, Yersinia pestis, Vibrio cholerae, Pseudomonas aeruginosa, etc.
Animals and plants that more strongly depend on bacteria to live would die quickly, which includes many species that humans depend on for food: cows, goats, and sheep. Over time sequestration of essential nutrients in accessible forms would cause more widespread death, as plants and animals steadily dwindled in number.
The 0.1% that are not killed are most likely those individual bacteria which have resistance to the antibacterial agents in the cleaner. Because they are not killed, they survive and could multiply into a whole population of bacteria which are resistant to that chemical.
Staphylococcus Aureus (MRSA)
It is the original and archetypal “superbug”, now resistant to all but a handful of our 'last-resort' antibiotics.
According to reports, fluoroquinolones—a broad spectrum antibiotic that includes Cipro, Levaquin, Avelox, and others—have been associated with a host of devastating side effects, including joint and muscle pain, tendon rupture, aortic aneurysm, nerve damage, delirium, and even death.
Before the discovery of antibiotics, there was nothing much anybody could do. Streptococcus pyogenes caused half of all post-birth deaths and was a major cause of death from burns. Staphylococcus aureus was fatal in 80 percent of infected wounds and the tuberculosis and pneumonia bacteria were famous killers.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
The Bacteria That Doesn't Die
Brouchkov first discovered this ancient bacteria, Bacillus F, in 2009, frozen deep in the permafrost on a mountain in Siberia's Yakutsk region. Like, even deeper in the permafrost than wooly mammoth remains.
Some bacteria have a 250-million year lifespan under some special circumstances. Bacteria don't have a fixed lifespan because they don't grow old.