diphtheria incubation period

Posted on October 8th, 2020


Diphtheria can affect any age group. Persons who continue to harbor the organism after treatment with either penicillin or erythromycin should receive an additional 10-day course of erythromycin and should submit samples for follow-up cultures. Respiratory and cutaneous diphtheria have been reported in travelers, though rarely. In 1996, 8 isolates of toxigenic C. diphtheriae were obtained from persons in a Native American community in South Dakota. In the United States, DAT is available to physicians under an investigational new drug protocol by contacting their state health departments and then CDC at 770-488-7100. It is not indicated for prophylaxis of contacts of diphtheria patients. The overall case-fatality rate for diphtheria is 5%-10%, with higher death rates (up to 20%) among persons younger than 5 and older than 40 years of age. Management of cases involves diphtheria antitoxin, antibiotic therapy and infection control. Consultation on the use of diphtheria antitoxin is available through the duty officer at the CDC through CDC’s Emergency Operations Center at 770-488-7100.
MMWR Morb Mortal Wkly Rep. 2004 Jan 9;52(53):1285–6. Within 2-3 days, a bluish-white membrane forms and extends, varying in size from covering a small patch on the tonsils to covering most of the soft palate. However, treatment should be started if clinical diphtheria is suggested, even in the absence of a Gram stain. Selective medium is required to culture C. diphtheriae, so the testing laboratory should be notified that the disease is clinically suspected. These can be substituted with equivalent oral formulations once the patient can swallow comfortably. The first, second, and third doses of DTaP should be separated by a minimum of 4 weeks. The onset is insidious, with early symptoms of malaise, sore throat, anorexia and low-grade fever (rarely >39.1 °C). It primarily affects the tonsils, pharynx, nose and larynx. Usually, the disease causes a thick coating at the back of the throat, which can make it …

A gateway to the strategies, policies, programs and services delivered by the Department of Health & Human Services. The incubation period is short: 2–5 days, with a range of 1–10 days. Culture of the organism requires selective media containing tellurite. In some NIS countries, up to 80% of the epidemic diphtheria cases have been among adults.

Victoria’s specialist alcohol and other drug treatment services cover a broad spectrum of community-based and residential treatment options. Diagnosis is usually based on observation of the classical greyish-white membrane overlying the tonsils or pharynx. Information about vaccines and immunisation in Victoria. 5th ed. In the United States, cutaneous diphtheria has been most often associated with homeless persons. These reactions present as extensive painful swelling, often from shoulder to elbow. It is rarely a toxic illness in itself but can potentially spread to contacts’ respiratory tracts. Outbreaks of diphtheria require immunising the largest possible proportion of the population involved, emphasising the need for protection of infants and preschool children. Specimens for C. diphtheriae culture should be obtained from the nose and throat, and from any other suspicious lesions. [cited 2018 Feb 20]. Obstruction of the airway may follow. CDC. Pharyngeal and tonsillar diphtheria 3. All isolates should be sent to a public health reference laboratory for C. diphtheriae toxin detection by polymerase chain reaction (PCR). Laryngeal diphtheria can be either an extension of the pharyngeal form or can involve only this site. CDC. Case management involves diphtheria antitoxin, antibiotic therapy and infection control. Antibiotics should be continued to complete a total of 14 days of treatment. Diphtheria antitoxin should be given if there is strong clinical suspicion, immediately after specimens are taken and without waiting for laboratory confirmation. Diphtheria is a rare disease in industrialized countries including the United States. They are regulated by the Victorian Government. Illness is now rare in highly immunised communities, including Australia. Victorian health service boards have well defined responsibilities and the department acknowledges board education as a crucial activity. Immunosuppression and pregnancy are not contraindications to receiving diphtheria toxoid. If enough toxin is absorbed, the patient may develop severe prostration, striking pallor, rapid pulse, stupor, and coma, and may even die within 6 to 10 days. Cases should be excluded until a medical certificate of recovery is received following at least two negative throat swabs. Patients must be tested for hypersensitivity before administration. https://www2.health.vic.gov.au:443/public-health/infectious-diseases/disease-information-advice/diphtheria, https://www2.health.vic.gov.au:443/privacy, https://www2.health.vic.gov.au:443/copyright, https://www2.health.vic.gov.au:443/disclaimer, This web site is managed and authorised by the Department of Health & Human Services, State Government of Victoria, Australia. Diphtheria toxoid is also available as combined DTaP-HepB-IPV (Pediarix) and DTaP-IPV/Hib (Pentacel)—see Pertussis chapter for more information. Drug policy and services newsletters, covering topics such as the National Ice Taskforce, the 10 year mental health plan, and sector engagement. Saving Lives, Protecting People, Epidemiology and Prevention of Vaccine-Preventable Diseases, Contraindications and Precautions to Vaccination, 1991 Diphtheria, Tetanus, and Pertussis: Recommendations for Vaccine Use and Other Preventive Measures for schedule for children younger than 7 years of age, National Center for Immunization and Respiratory Diseases, Chapter 2: General Recommendations on Immunization, Chapter 3: Immunization Strategies for Healthcare Practices and Providers, Appendix A: Schedules and Recommendations, Appendix C: Vaccine Information Statements, U.S. Department of Health & Human Services, Recognized by Hippocrates in 5th century BCE, If isolated, must be distinguished from normal diphtheroid, Incubation period 2-5 days (range, 1-10 days), Membrane may cause respiratory obstruction, Fever usually not high but patient appears toxic, Severity generally related to extent of local disease, Most frequent complications are myocarditis and neuritis, without antibiotics, seldom more than 4 weeks, Should be administered with tetanus toxoid as DTaP, DT, Td, or Tdap. The pseudomembrane is firm, fleshy, grey, and adherent; it typically will bleed after attempts to remove or dislodge it. Residential aged care is for older people who can no longer live at home. Appropriate antibiotic therapy promptly terminates shedding. A career in mental health has rewards for everyone. This is a Victorian statutory requirement. Wkly Epidemiol Rec. 15 December 2017, Washington, DC: PAHO/WHO; 2017. If diphtheria bacilli are isolated, they must be tested for toxin production. None of the infected persons had classic diphtheria disease, although five had either pharyngitis or tonsillitis. Beginning in 1980, all cutaneous cases were excluded from reporting. Diphtheria is now a very rare infection in Australia but may occur in unimmunised people who are recent travellers, or their contacts. The incubation period of diphtheria is usually 2–5 days (range: 1–10 days). A presumptive diagnosis is usually based on clinical features. Diphtheria antitoxin does not neutralize toxin that is already fixed to tissues, but it will neutralize circulating (unbound) toxin and prevent progression of disease. Co-administration of antitoxin with corticosteroids may be recommended for patients with hypersensitivity to antitoxin. To isolate C. diphtheriae from carriers, it is best to inoculate a Löffler or Pai slant with the throat swab.
Victorian information about vaccination for children, adolescents and adults. A Victorian government resource providing information and advice on designing and caring for people with dementia in residential aged care settings.

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