Toxic shock syndrome | |
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Toxic shock syndrome toxin-1 protein from staphylococcus | |
Specialty | Infectious disease |
Symptoms | Fever, rash, skin peeling, low blood pressure [1] |
Complications | Shock, kidney failure [2] |
Usual onset | Rapid [1] |
Types | Staphylococcal (menstrual and nonmenstrual), streptococcal [1] |
Causes | Streptococcus pyogenes , Staphylococcus aureus , others [1] [3] |
Risk factors | Very absorbent tampons, skin lesions in young children [1] |
Diagnostic method | Based on symptoms [1] |
Differential diagnosis | Septic shock, Kawasaki's disease, Stevens–Johnson syndrome, scarlet fever [4] |
Treatment | Antibiotics, incision and drainage of any abscesses, intravenous immunoglobulin [1] |
Prognosis | Risk of death: ~50% (streptococcal), ~5% (staphylococcal) [1] |
Frequency | Staphylococcal: 0.3 to 0.5 cases per 100,000 population Streptococcal: 2 to 4 cases per 100,000 population |
Toxic shock syndrome (TSS) is a condition caused by bacterial toxins. [1] Symptoms may include fever, rash, skin peeling, and low blood pressure. [1] There may also be symptoms related to the specific underlying infection such as mastitis, osteomyelitis, necrotising fasciitis, or pneumonia. [1]
TSS is typically caused by bacteria of the Streptococcus pyogenes or Staphylococcus aureus type, though others may also be involved. [1] [3] Streptococcal toxic shock syndrome is sometimes referred to as toxic-shock-like syndrome (TSLS). [1] The underlying mechanism involves the production of superantigens during an invasive streptococcus infection or a localized staphylococcus infection. [1] Risk factors for the staphylococcal type include the use of very absorbent tampons, skin lesions in young children characterized by fever, low blood pressure, rash, vomiting and/or diarrhea, and multiorgan failure. [1] [5] [6] Diagnosis is typically based on symptoms. [1]
Treatment includes intravenous fluids, antibiotics, incision and drainage of any abscesses, and possibly intravenous immunoglobulin. [1] [7] The need for rapid removal of infected tissue via surgery in those with a streptococcal cause, while commonly recommended, is poorly supported by the evidence. [1] Some recommend delaying surgical debridement. [1] The overall risk of death is about 50% in streptococcal disease, and 5% in staphylococcal disease. [1] Death may occur within 2 days. [1]
In the United States, the incidence of menstrual staphylococcal TSS declined sharply in the 1990s, while both menstrual and nonmenstrual cases have stabilized at about 0.3 to 0.5 cases per 100,000 population. [1] Streptococcal TSS (STSS) saw a significant rise in the mid-1980s and has since remained stable at 2 to 4 cases per 100,000 population. [1] In the developing world, the number of cases is usually on the higher extreme. [1] TSS was first described in 1927. [1] It came to be associated with very absorbent tampons that were removed from sale soon after. [1]
Symptoms of toxic shock syndrome (TSS) vary depending on the underlying cause. TSS resulting from infection with the bacterium Staphylococcus aureus typically manifests in otherwise healthy individuals via signs and symptoms including high fever, accompanied by low blood pressure, malaise and confusion, [3] which can rapidly progress to stupor, coma, and multiple organ failure. The characteristic rash, often seen early in the course of illness, resembles a sunburn [3] (conversely, streptococcal TSS will rarely involve a sunburn-like rash), and can involve any region of the body including the lips, mouth, eyes, palms and soles of the feet. [3] In patients who survive, the rash desquamates (peels off) after 10–21 days. [3] The initial presentation of symptoms can be hard to differentiate from septic shock and other conditions such as Rocky Mountain spotted fever, rubeola, leptospirosis, drug toxicities, and viral exanthems. [8]
STSS caused by the bacterium Streptococcus pyogenes , or TSLS, typically presents in people with pre-existing skin infections with the bacteria. These individuals often experience severe pain at the site of the skin infection, followed by rapid progression of symptoms as described above for TSS. [9]
In both TSS (caused by S. aureus) and TSLS (caused by S. pyogenes), disease progression stems from a superantigen toxin. The toxin in S. aureus infections is TSS Toxin-1, or TSST-1. The TSST-1 is secreted as a single polypeptide chain. The gene encoding toxic shock syndrome toxin is carried by a mobile genetic element of S. aureus in the SaPI family of pathogenicity islands. [10] The toxin causes the non-specific binding of MHC II, on professional antigen presenting cells, with T-cell receptors, on T cells.
In typical T-cell recognition, an antigen is taken up by an antigen-presenting cell, processed, expressed on the cell surface in complex with class II major histocompatibility complex (MHC) in a groove formed by the alpha and beta chains of class II MHC, and recognized by an antigen-specific T-cell receptor. This results in polyclonal T-cell activation. Superantigens do not require processing by antigen-presenting cells but instead, interact directly with the invariant region of the class II MHC molecule. [11] In patients with TSS, up to 20% of the body's T-cells can be activated at one time. This polyclonal T-cell population causes a cytokine storm, [7] followed by a multisystem disease.
A few possible causes of toxic shock syndrome are: [12] [13]
For staphylococcal toxic shock syndrome, the diagnosis is based upon CDC criteria defined in 2011, as follows: [5]
Cases are classified as confirmed or probable as follows:
The severity of this disease frequently warrants hospitalization. Admission to the intensive care unit is often necessary for supportive care (for aggressive fluid management, ventilation, renal replacement therapy and inotropic support), particularly in the case of multiple organ failure. [14] Treatment includes removal or draining of the source of infection—often a tampon—and draining of abscesses. Outcomes are poorer in patients who do not have the source of infection removed. [14]
Antibiotic treatment should cover both S. pyogenes and S. aureus. This may include a combination of cephalosporins, penicillins or vancomycin. The addition of clindamycin [15] or gentamicin [16] reduces toxin production and mortality.
In some cases doctors will prescribe other treatments such as blood pressure medications (to stabilize blood pressure if it is too low), dialysis, oxygen mask (to stabilize oxygen levels), and sometimes a ventilator. These will sometimes be used to help treat side effects of contracting TSS. [12]
With proper treatment, people usually recover in two to three weeks. The condition can, however, be fatal within hours. TSS has a mortality rate of 30–70%. Children who are affected by TSS tend to recover easier than adults do. [17]
During menstruation: [20]
For anyone: [21]
Staphylococcal toxic shock syndrome is rare and the number of reported cases has declined significantly since the 1980s. Patrick Schlievert, who published a study on it in 2004, determined incidence at three to four out of 100,000 tampon users per year; the information supplied by manufacturers of sanitary products such as Tampax and Stayfree puts it at one to 17 of every 100,000 menstruating females, per year. [22] [23]
TSS was considered a sporadic disease that occurred in immunocompromised people. It was not a more well-known disease until the 1980s, when high-absorbency tampons were in use. Due to the idea of the tampons having a high absorbency this led users to believe that they could leave a tampon in for several hours. Doing this allowed the bacteria to grow and led to infection. This resulted in a spike of cases of TSS. [24]
Philip M. Tierno Jr. helped determine that tampons were behind TSS cases in the early 1980s. Tierno blames the introduction of higher-absorbency tampons in 1978. A study by Tierno also determined that all-cotton tampons were less likely to produce the conditions in which TSS can grow; this was done using a direct comparison of 20 brands of tampons including conventional cotton/rayon tampons and 100% organic cotton tampons from Natracare. In fact, Dr Tierno goes as far to state, "The bottom line is that you can get TSS with synthetic tampons, but not with an all-cotton tampon." [25]
A rise in reported cases occurred in the early 2000s: eight deaths from the syndrome in California in 2002 after three successive years of four deaths per year, and Schlievert's study found cases in part of Minnesota more than tripled from 2000 to 2003. [22] Schlievert considers earlier onset of menstruation to be a cause of the rise; others, such as Philip M. Tierno and Bruce A. Hanna, blame new high-absorbency tampons introduced in 1999 and manufacturers discontinuing warnings not to leave tampons in overnight. [22]
In Japan, Cases of streptococcal toxic shock syndrome (STSS) reached 1,019 from January to June 2024, as compared to the 941 cases reported in 2023. [26] [27]
TSS is more common during the winter and spring and occurs most often in the young and old. [3]
Toxic shock syndrome is commonly known to be an issue for those who menstruate, although fifty percent of Toxic Shock Syndrome cases are unrelated to menstruation. TSS in these cases can be caused by skin wounds, surgical sites, nasal packing, and burns. [20]
The term "toxic shock syndrome" was first used in 1978 by a Denver pediatrician, James K. Todd, to describe the staphylococcal illness in three boys and four girls aged 8–17 years. [28] Even though S. aureus was isolated from mucosal sites in the patients, bacteria could not be isolated from the blood, cerebrospinal fluid, or urine, raising suspicion that a toxin was involved. The authors of the study noted reports of similar staphylococcal illnesses had appeared occasionally as far back as 1927, but the authors at the time failed to consider the possibility of a connection between toxic shock syndrome and tampon use, as three of the girls who were menstruating when the illness developed were using tampons. Many cases of TSS occurred after tampons were left in after they should have been removed. [29]
Following controversial test marketing in Rochester, New York, and Fort Wayne, Indiana, [30] in August 1978, Procter and Gamble introduced superabsorbent Rely tampons to the United States market [31] in response to demands for tampons that could contain an entire menstrual flow without leaking or replacement. [32] Rely used carboxymethylcellulose (CMC) and compressed beads of polyester for absorption. This tampon design could absorb nearly 20 times its own weight in fluid. [33] Further, the tampon would "blossom" into a cup shape in the vagina to hold menstrual fluids without leakage. [34] [35]
In January 1980, epidemiologists in Wisconsin and Minnesota reported the appearance of TSS, mostly in those menstruating, to the CDC. [36] S. aureus was successfully cultured from most of the subjects. The Toxic Shock Syndrome Task Force was created and investigated the epidemic as the number of reported cases rose throughout the summer of 1980. [37] In September 1980, CDC reported users of Rely were at increased risk for developing TSS. [38]
On 22 September 1980, Procter and Gamble recalled Rely [39] following release of the CDC report. As part of the voluntary recall, Procter and Gamble entered into a consent agreement with the FDA "providing for a program for notification to consumers and retrieval of the product from the market". [40] However, it was clear to other investigators that Rely was not the only culprit. Other regions of the United States saw increases in menstrual TSS before Rely was introduced. [41]
It was shown later that higher absorbency of tampons was associated with an increased risk for TSS, regardless of the chemical composition or the brand of the tampon. The sole exception was Rely, for which the risk for TSS was still higher when corrected for its absorbency. [42] The ability of carboxymethylcellulose to filter the S. aureus toxin that causes TSS may account for the increased risk associated with Rely. [33]
Group A streptococcal infections are a number of infections with Streptococcus pyogenes, a group A streptococcus (GAS). S. pyogenes is a species of beta-hemolytic Gram-positive bacteria that is responsible for a wide range of infections that are mostly common and fairly mild. If the bacteria enters the bloodstream, the infection can become severe and life-threatening, and is called an invasive GAS (iGAS).
Scarlet fever, also known as scarlatina, is an infectious disease caused by Streptococcus pyogenes, a Group A streptococcus (GAS). It most commonly affects children between five and 15 years of age. The signs and symptoms include a sore throat, fever, headache, swollen lymph nodes, and a characteristic rash. The face is flushed and the rash is red and blanching. It typically feels like sandpaper and the tongue may be red and bumpy. The rash occurs as a result of capillary damage by exotoxins produced by S.pyogenes. On darker-pigmented skin the rash may be hard to discern.
Staphylococcus aureus is a gram-positive spherically shaped bacterium, a member of the Bacillota, and is a usual member of the microbiota of the body, frequently found in the upper respiratory tract and on the skin. It is often positive for catalase and nitrate reduction and is a facultative anaerobe, meaning that it can grow without oxygen. Although S. aureus usually acts as a commensal of the human microbiota, it can also become an opportunistic pathogen, being a common cause of skin infections including abscesses, respiratory infections such as sinusitis, and food poisoning. Pathogenic strains often promote infections by producing virulence factors such as potent protein toxins, and the expression of a cell-surface protein that binds and inactivates antibodies. S. aureus is one of the leading pathogens for deaths associated with antimicrobial resistance and the emergence of antibiotic-resistant strains, such as methicillin-resistant S. aureus (MRSA). The bacterium is a worldwide problem in clinical medicine. Despite much research and development, no vaccine for S. aureus has been approved.
A tampon is a menstrual product designed to absorb blood and vaginal secretions by insertion into the vagina during menstruation. Unlike a pad, it is placed internally, inside of the vaginal canal. Once inserted correctly, a tampon is held in place by the vagina and expands as it soaks up menstrual blood.
Necrotizing fasciitis (NF), also known as flesh-eating disease, is a bacterial infection that results in the death of parts of the body's soft tissue. It is a severe disease of sudden onset that spreads rapidly. Symptoms usually include red or purple skin in the affected area, severe pain, fever, and vomiting. The most commonly affected areas are the limbs and perineum.
An exotoxin is a toxin secreted by bacteria. An exotoxin can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted, or, similar to endotoxins, may be released during lysis of the cell. Gram negative pathogens may secrete outer membrane vesicles containing lipopolysaccharide endotoxin and some virulence proteins in the bounding membrane along with some other toxins as intra-vesicular contents, thus adding a previously unforeseen dimension to the well-known eukaryote process of membrane vesicle trafficking, which is quite active at the host–pathogen interface.
Feminine hygiene products are personal care products used for women's hygiene during menstruation, vaginal discharge, or other bodily functions related to the vulva and vagina. Products that are used during menstruation may also be called menstrual hygiene products, including menstrual pads, tampons, pantyliners, menstrual cups, menstrual sponges and period panties. Feminine hygiene products also include products meant to cleanse the vulva or vagina, such as douches, feminine wipes, and soap.
Superantigens (SAgs) are a class of antigens that result in excessive activation of the immune system. Specifically they cause non-specific activation of T-cells resulting in polyclonal T cell activation and massive cytokine release. Superantigens act by binding to the MHC proteins on antigen-presenting cells (APCs) and to the TCRs on their adjacent helper T-cells, bringing the signaling molecules together, and thus leading to the activation of the T-cells, regardless of the peptide displayed on the MHC molecule. SAgs are produced by some pathogenic viruses and bacteria most likely as a defense mechanism against the immune system. Compared to a normal antigen-induced T-cell response where 0.0001-0.001% of the body's T-cells are activated, these SAgs are capable of activating up to 20% of the body's T-cells. Furthermore, Anti-CD3 and Anti-CD28 antibodies (CD28-SuperMAB) have also shown to be highly potent superantigens.
An enterotoxin is a protein exotoxin released by a microorganism that targets the intestines. They can be chromosomally or plasmid encoded. They are heat labile, of low molecular weight and water-soluble. Enterotoxins are frequently cytotoxic and kill cells by altering the apical membrane permeability of the mucosal (epithelial) cells of the intestinal wall. They are mostly pore-forming toxins, secreted by bacteria, that assemble to form pores in cell membranes. This causes the cells to die.
Rely was a brand of superabsorbent tampons made by Procter & Gamble starting in 1975. The brand's advertising slogan was "It even absorbs the worry!", and claimed it could hold up longer than the leading tampon, because it was made differently. "Remember, They named it Rely" was the last line of most commercials.
Streptococcus suis is a peanut-shaped, Gram-positive bacterium, and an important pathogen of pigs. Endemic in nearly all countries with an extensive pig industry, S. suis is also a zoonotic disease, capable of transmission to humans from pigs.
Dukes' disease, named after Clement Dukes (1845–1925), also known as fourth disease, Filatov-Dukes' disease, Staphylococcal Scalded Skin Syndrome (SSSS), or Ritter's disease is an exanthem (rash-causing) illness primarily affecting children and historically described as a distinct bacterial infection, though its existence as a separate disease entity is now debated.
Toxic shock syndrome toxin-1 (TSST-1) is a superantigen with a size of 22 kDa produced by 5 to 25% of Staphylococcus aureus isolates. It causes toxic shock syndrome (TSS) by stimulating the release of large amounts of interleukin-1, interleukin-2 and tumor necrosis factor. In general, the toxin is not produced by bacteria growing in the blood; rather, it is produced at the local site of an infection, and then enters the blood stream.
A staphylococcal infection or staph infection is an infection caused by members of the Staphylococcus genus of bacteria.
Microbial toxins are toxins produced by micro-organisms, including bacteria, fungi, protozoa, dinoflagellates, and viruses. Many microbial toxins promote infection and disease by directly damaging host tissues and by disabling the immune system. Endotoxins most commonly refer to the lipopolysaccharide (LPS) or lipooligosaccharide (LOS) that are in the outer plasma membrane of Gram-negative bacteria. The botulinum toxin, which is primarily produced by Clostridium botulinum and less frequently by other Clostridium species, is the most toxic substance known in the world. However, microbial toxins also have important uses in medical science and research. Currently, new methods of detecting bacterial toxins are being developed to better isolate and understand these toxins. Potential applications of toxin research include combating microbial virulence, the development of novel anticancer drugs and other medicines, and the use of toxins as tools in neurobiology and cellular biology.
In the field of molecular biology, enterotoxin type B, also known as Staphylococcal enterotoxin B (SEB), is an enterotoxin produced by the gram-positive bacteria Staphylococcus aureus. It is a common cause of food poisoning, with severe diarrhea, nausea and intestinal cramping often starting within a few hours of ingestion. Being quite stable, the toxin may remain active even after the contaminating bacteria are killed. It can withstand boiling at 100 °C for a few minutes. Gastroenteritis occurs because SEB is a superantigen, causing the immune system to release a large amount of cytokines that lead to significant inflammation.
Bacteriophage T12 is a bacteriophage that infects Streptococcus pyogenes bacteria. It is a proposed species of the family Siphoviridae in the order Caudovirales also known as tailed viruses. It converts a harmless strain of bacteria into a virulent strain. It carries the speA gene which codes for erythrogenic toxin A. speA is also known as streptococcal pyogenic exotoxin A, scarlet fever toxin A, or even scarlatinal toxin. Note that the name of the gene "speA" is italicized; the name of the toxin "speA" is not italicized. Erythrogenic toxin A converts a harmless, non-virulent strain of Streptococcus pyogenes to a virulent strain through lysogeny, a life cycle which is characterized by the ability of the genome to become a part of the host cell and be stably maintained there for generations. Phages with a lysogenic life cycle are also called temperate phages. Bacteriophage T12, proposed member of family Siphoviridae including related speA-carrying bacteriophages, is also a prototypic phage for all the speA-carrying phages of Streptococcus pyogenes, meaning that its genome is the prototype for the genomes of all such phages of S. pyogenes. It is the main suspect as the cause of scarlet fever, an infectious disease that affects small children.
Sharra Louise Vostral is a Professor of History and Science and Technology at the College of Liberal Arts at Purdue University. She has written two books about menstruation and history: Under Wraps: A History of Menstrual Hygiene Technology and Toxic Shock: A Social History.
The Robin Danielson Feminine Hygiene Product Safety Act is a proposed act of the United States Congress, directing the National Institutes of Health (NIH) to research the possible health risks of menstrual hygiene products made with dioxins, synthetic fibers, chemicals such as chlorine or fragrance irritants. It also called for the Food and Drug Administration (FDA) to monitor dioxin levels in similar hygiene products.
Natracare is a British feminine hygiene brand that produces organic and plastic-free menstrual products, including tampons, sanitary pads and panty liners.
Superantigens are proteins that have the ability to bind to an invariant region of the class II major histocompatibility complex (MHC) on an antigen-presenting cell and to crosslink this receptor to a T cell through binding to the variable region of the β-chain of the T cell antigen receptor.
Pursettes blossom out to absorb more fully, more effectively.
On contact with moisture, new Pursettes blossom out to absorb more fully, more effectively.