Diphtheria

While in many regions diphtheria has been controlled in recent years with effective vaccination, there have been sporadic outbreaks in the United States and Europe.

It is still common in the Caribbean, Latin America, and the Indian subcontinent, where mass immunization programs are not enforced. Largescale epidemics of diphtheria have occurred in the post-Soviet independent states. Additional outbreaks have been reported in Algeria, China, and Ecuador.

History 

The development of the disease antitoxin in 1898 by von Behring also of the diphtheria toxoid vaccine in 1924 by Ramon led to the near elimination of diphtheria in Western countries. The annual incidence rate in the United States peaked in 1921 at 191 cases per 100,000 populations. In contrast, since 1980, the annual figure in the United States has been. Nevertheless, pockets of colonization persist in North America, particularly in South Dakota, Ontario, and recently the state of Washington. Immunity to diphtheria induced by childhood vaccination gradually decreases in adulthood. In detail; An estimated 30% of men 60–69 years old have antitoxin titers below the protective level. In addition to older age and lack of vaccination, risk factors for diphtheria outbreaks include alcoholism, low socioeconomic status, crowded living conditions, and Native American ethnic background.

Clonally related toxigenic C. diphtheriae strains of the ET8 complex associate with this outbreak. Given that the ET8 complex expressed a toxin against which the prevalent diphtheria toxoid vaccine was effective, the epidemic attribute to failure of the public health infrastructure to effectively vaccinate the population. Socioeconomic instability, migration, deteriorating public health programs, frequent vaccine shortages, delayed implementation of vaccination and treatment in response to cases, also lack of public education and awareness were contributing factors. 

Diphtheriae is a gram-positive bacillus that unencapsulated, nonmotile, also nonsporulating. The organism first identified microscopically in 1883 by Klebs and a year later isolated in pure culture by Löffler in Robert Koch’s laboratory. The bacteria have a characteristic club-shaped bacillary appearance and typically form clusters of parallel rays, or palisades, that referred to as “Chinese characters.”

Different Laboratory media

The specific laboratory media recommended for the cultivation of C. diphtheriae rely upon tellurite, colistin, or nalidixic acid for the organism’s selective isolation from other autochthonous pharyngeal microbes. C. diphtheriae may isolated from individuals with both nontoxigenic (tox–) and toxigenic (tox+) phenotypes.

Uchida and Pappenheimer demonstrated that coryne-bacteriophage beta carries the structural gene tox, which encodes diphtheria toxin, also that a family of closely related corynebacteriophages are responsible for toxigenic conversion of tox– C. diphtheriae to the tox+ phenotype. Moreover, lysogenic conversion from a nontoxigenic to a toxigenic phenotype has shown to occur in situ. Growth of toxigenic strains of C. diphtheriae under iron-limiting conditions leads to the optimal expression of diphtheria toxin and believed to a pathogenic mechanism during human infection 

• Lack of immunization
• History of contact with diphtheria patients
• Presence of skin lesions
• Presence of eczema
• History of chronic health conditions
• History of travel to areas endemic for diphtheria
• Overcrowding
• Exposure to poor sanitary conditions
• Poor personal hygiene
• Sharing utensils and fomites with person suffering from diphtheria
• Presence of tonsils 

This toxin produced by tox+ strains of C. diphtheriae is the primary virulence factor in clinical disease. The toxin synthesize in precursor form; released as a 535-amino-acid, single-chain protein; also , in sensitive species (e.g., guinea pigs and humans, but not mice or rats), has a 50% lethal dose of ~100 ng/kg of body weight. The toxin produce in the pseudomembranous lesion and taken up in the bloodstream, from which it distribute to all organ systems in the body. Once bound to its cell surface receptor (e.g. a heparin-binding epidermal growth factor–like precursor), the toxin internalized by receptor-mediated endocytosis and enters the cytosol from an acidified early endosomal compartment.

In vitro, the toxin may separated into two chains by digestion with serine proteases: the N-terminal A fragment and the C-terminal B fragment. Delivery of the A fragment into the eukaryotic cell cytosol results in irreversible inhibition of protein synthesis by NAD+-dependent ADP-ribosylation of elongation factor 2. The eventual result is the death of the cell. 

There are two types: respiratory and cutaneous (skin).

1. Respiratory diphtheria

• Respiratory diphtheria presents as a sore throat with low-grade fever and a membrane attached to the tonsils, pharynx, or nose. Neck swelling is usually present in severe disease.
• Respiratory diphtheria can lead to severe breathing problems, heart failure, blood disorders, paralysis, coma and even death.

      2. Cutaneous (skin) diphtheria

• In the United States, cutaneous diphtheria, although rare, is most often seen among persons with poor hygiene who live in crowded conditions.
• Skin infections with diphtheria are still common in tropical countries and are even more contagious than respiratory diphtheria.
• Skin wounds are characterized by a scaling rash, sores or by blisters which can occur anywhere on the body. Skin wounds may be painful, swollen and reddened. The skin infection is treated by thorough cleansing with soap and water and appropriate antibiotics.

Symptoms usually start 2 to 5 days after becoming infected.

The main symptoms of diphtheria are:

• A thick grey-white coating at the back of your throat
• A high temperature (in other words; fever) of 38C or above
• Feeling sick
• Sore throat

• Headache

• Swollen glands in your neck
• Difficulty breathing and swallowing

If it affects your skin (in other words; cutaneous diphtheria), it can cause:

• pus-filled blisters on your legs, feet and hands
• large ulcers surrounded by red, sore-looking skin 

• A patient with diphtheria usually looks ill; systemic signs such as fever, tachypnea, and tachycardia are common. Pharyngeal, respiratory, neurologic, cardiac, and other physical examination findings depend upon the extent and severity of the infection.

Laboratory Findings

A presumptive diagnosis of diphtheria is usually based on clinical features. A definitive diagnosis is made by growing the specific Corynebacterium species on special cultures from the respiratory tract secretions or cutaneous lesions. Culture of the lesion is performed to confirm the diagnosis. It is critical to take a swab of the pharyngeal area, especially any discolored areas, ulcerations, and tonsillar crypts. Culture medium containing tellurite is preferred. PCR assays can also be performed on isolates, swabs, or membrane specimens to rapidly confirm the presence of the tox gene responsible for the production of diphtheria toxin.

X ray

Diphtheric myocarditis may result in systolic ventricular heart failure, which is evident by cardiomegaly on chest x-ray (CXR). Diphtheric patients may also present with bronchopneumonia. In this case, CXR may be normal, or it may show increased pulmonary vascular markings and/or inflammatory infiltrates. 

CT

In cases of respiratory diphtheria, a CT scan may reveal swelling of the soft tissue of the nasopharynx, oropharynx, larynx uvula, and soft palat

MRI

An MRI may be performed to document diphtheric neuropathy.

Electrocardiogram

An ECG in patients with diphtheria may be normal. However, in patients   with diphtheria myocarditis, a wide range of abnormalities related to conduction and rhythm may be observed.

Echocardiography

Echocardiography may be performed to document ejection fraction (EF) and any signs of ventricular systolic dysfunction if diphtheria infection has been complicated by systemic involvement of the myocardium.

The diagnosis of diphtheria is based on clinical signs and symptoms plus laboratory confirmation. Respiratory diphtheria should considered in patients with sore throat, pharyngeal exudates, and fever. Other symptoms may include hoarseness, stridor, or palatal paralysis. The presence of a pseudomembrane should prompt strong consideration of diphtheria. Once a clinical diagnosis of diphtheria made, diphtheria antitoxin should obtained and administered as rapidly as possible.

Laboratory diagnosis

Laboratory diagnosis of diphtheria based either on cultivation of C. diphtheriae or toxigenic Corynebacterium ulcerans from the site of infection or on the demonstration of local lesions with characteristic histopathology. Corynebacterium pseudodiphtheriticum, a nontoxigenic organism, is a common component of the normal throat flora and does not pose a significant risk. Throat samples should submit to the laboratory for culture with the notation that diphtheria is being considered. This information should prompt cultivation on special selective medium and subsequent biochemical testing to differentiate C. diphtheriae from other nasopharyngeal commensal corynebacteria. All laboratory isolates of C. diphtheriae, including nontoxigenic strains, should submit to the CDC.

Cutaneous diphtheria

A diagnosis of cutaneous diphtheria requires laboratory confirmation since the lesions are not characteristic and are indistinguishable from other dermatoses. Diphtheritic ulcers occasionally—but not consistently—have a punched-out appearance (Fig. 175-2). Patients in whom cutaneous diphtheria identified should have the nasopharynx cultured for C. diphtheriae. The laboratory medium for cutaneous diphtheria specimens the same as that used for respiratory diphtheria: Löffler’s or Tinsdale’s selective medium in addition to nonselective medium such as blood agar. As has mentioned, respiratory diphtheria remains a notifiable disease in the United States, whereas cutaneous diphtheria is not. 

1. diphtheriae transmitted via the aerosol route, usually during close contact with an infected person. There are no significant reservoirs other than humans. The incubation period for respiratory diphtheria is 2–5 days, but disease onset has occurred as late as 10 days after exposure. Prior to the vaccination era, most individuals over the age of 10 were immune to C. diphtheriae; infants protected by maternal IgG antibodies but became susceptible after ~6 months of age. Thus, the disease primarily affected children and nonimmune young adults. In temperate regions, respiratory diphtheria occurs year-round but is most common during winter months 

• Epiglottitis
• Retropharyngeal Abscess
• Angioedema
• Infectious Mononucleosis
• Pharyngitis
• Oral Candidiasis 

Diphtheria can be prevented to an extent by the use of vaccines and antibiotics. The vaccine for diphtheria is called DTaP. It’s normally given in a single shot with vaccines for diphtheria, tetanus, and pertussis. The DTaP is given in five shots to the children of the ages mentioned below:

• 6 months
• 12 to 18 months
• 4 to 6 years

A child may be allergic to the vaccine in rare cases. This may result in hives or seizures that last only for a few days from the date of vaccination.

Vaccines last only for ten years, and the child needs to be vaccinated again at the age of 12. But for adults, it’s suggested that they get a combination shot of tetanus and diphtheria. This is called the tetanus-diphtheria (Td) vaccine.

Homeopathy treats the person as a whole. It means that homeopathic treatment focuses on the patient as a person, as well as his pathological condition. The homeopathic medicines selected after a full individualizing examination and case-analysis. 

Which includes 

• The medical history of the patient, 
• Physical and mental constitution, 
• Family history, 
• Presenting symptoms, 
• Underlying pathology, 
• Possible causative factors etc. 

A miasmatic tendency (predisposition/susceptibility) also often taken into account for the treatment of chronic conditions. 

What Homoeopathic doctors do? 

A homeopathy doctor tries to treat more than just the presenting symptoms. The focus is usually on what caused the disease condition? Why ‘this patient’ is sick ‘this way’? 

The disease diagnosis is important but in homeopathy, the cause of disease not just probed to the level of bacteria and viruses. Other factors like mental, emotional and physical stress that could predispose a person to illness also looked for. Now a days, even modern medicine also considers a large number of diseases as psychosomatic. The correct homeopathy remedy tries to correct this disease predisposition. 

The focus is not on curing the disease but to cure the person who is sick, to restore the health. If a disease pathology not very advanced, homeopathy remedies do give a hope for cure but even in incurable cases, the quality of life can greatly improve with homeopathic medicines. 

Homeopathic Medicines for Diphtheria:

The homeopathic remedies (medicines) given below indicate the therapeutic affinity but this is not a complete and definite guide to the homeopathy treatment of this condition. The symptoms listed against each homeopathic remedy may not be directly related to this disease because in homeopathy general symptoms and constitutional indications also taken into account for selecting a remedy, potency and repetition of dose by Homeopathic doctor. 

So, here we describe homeopathic medicine only for reference and education purpose. Do not take medicines without consulting registered homeopathic doctor (BHMS or M.D. Homeopath).  

Medicines:

1. Bryonia Alba:

• Great prostration; patient cannot bear to be moved; complains of pains everywhere when moved; white tongue; dry mouth; thirst for large quantities of water.

2. Belladona:

• Restless; complains of sore throat, which looks highly inflamed; pupils large; drowsy, but unable to sleep; starts suddenly out of sleep

3. Lycopodium:

• Throat brownish red; worse right side; worse from swallowing warm drinks; nose stopped up. Furthermore; patient cannot breathe with mouth shut; keeps mouth constantly open, slightly protruding the tongue, which gives a silly expression; unsteady step; on awaking from short nap he is cross; kicks; is naughty (if a child); or jumps up in bed, stares about, also knows nobody seemingly dreaming with open eyes; frequent jerkings of lower limbs, mostly with a groan, awake or slumbering; great fear of being left alone.

4. Rhus tox:

• Restless; wants to be carried about; wakes complaining of pain in throat; bloody saliva runs out of mouth during sleep; parotid glands good deal swollen; transparent jelly-like discharges form bowels at stool or afterwards

5. Apis mellifica:

• Great debility from the beginning; membranes at once assume dirty greyish colour, or there is great oedema of soft palate and much puffiness round the eyes; pain in ears on swallowing; an itching, stinging eruption on skin; sensation of weakness in larynx; numbness of feet and hands and even paralysis. (Apis is incompatible with Rhus, and should not be given immediately after it or Rhus after Apis.)

6. Kali Mur

   For typical diphtheria.

7. Kali phos:

• When the breath becomes putrid and the throat gangrenous or the case paralytic.

8. Ammonium carb:

• Diphtheria of scrofulous persons with swelling of the glands of the neck; putrid sore throat, burning pain with roughness also scraping in throat; tendency to gangrene in throat. Additionally, nose obstructed, child aroused from sleep by want of breath; great prostration; excessive sensitiveness to cold air and cold drinks; Besides this; cerebral symptoms

9. Arsenicum iod:

• Diphtheritic croup, deposit covering mouth from fauces to outer edge of lips and external auditory canal; foul breath; short, difficult respiration and symptoms of adynamia marked enlargement of lymphatic glands, WEAK HEART.

10. Bromium:

• Malignant forms of diphtheria, invading LARYNX DOWN RESPIRATORY ORGANS, leaving great weakness and lassitude; no fever, cool skin, sweating and spasm; husky tone of voice, rattling of mucus in larynx when coughing , cough has a croupy sound, with strangling of mucus in larynx when coughing rattling mucus in breathing; face ashy-gray, cheeks sunken, stiffness of neck, prostration Suits children with fair hair and skin, blue eyes, etc., also Teste affirms that milk neutralizes the action of Brom. And Iod. (Kali bi. no spasm). 

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Foods to be taken

• Fluids (e.g. juices)
• Milk
• Garlic
• Food in semi-solid form (e.g. ice creams)
• Fruits and vegetables

Foods to be avoided

• Spicy food
• Oils and fats
• Alcohol

Yoga and Exercise

• Breathing exercise (e.g. pranayama)
• Uttanasana
• Sarvangasana

Home Remedies

• Drink plenty of water
• Take plenty of rest
• Careful hand-washing
• Take diet through liquids and soft foods
• Immunization should be up to date
• Patient should avoid sleeping on their back to steer clear of swallowing the secretion formed in the mouth 

What is Diphtheria

Diphtheria is a nasopharyngeal and skin infection caused by Corynebacterium diphtheriae. Toxigenic strains of C. diphtheriae produce a protein toxin that causes systemic toxicity, myocarditis, and polyneuropathy

Homeopathic Medicines used by Homeopathic

Doctors in treatment of Diphtheria

• Bryonia Alba
• Belladona
• Lycopodium
• Rhus tox
• Apis mellifica
• Kali Mur
• Arsenicum iod
• Bromium

What causes Diphtheria

Corynebacterium diphtheriae gram-positive bacillus

What are the symptoms of Diphtheria

• A thick grey-white coating at the back of your throat
• A high temperature (fever) of 38C or above
• Feeling sick
• Sore throat
• Headache
• Swollen glands in your neck
• Difficulty breathing and swallowing

[1] Harrison-s_Principles_of_Internal_Medicine-_19th_Edition-_2_Volume_Set

[2] https://www.mtatva.com/en/disease/diphtheria-treatment-diet-and-home-remedies/

[3] https://www.nhs.uk/conditions/diphtheria/

[4] A Dictionary Of Domestic Medicine By John H.Clarke.

[5]Diphtheria risk factors – wikidoc

[6]Diphtheria – Types, Causes, Symptoms and Prevention. – (diseasesdic.com)

[7]Diphtheria – StatPearls – NCBI Bookshelf (nih.gov)

[8]Diphtheria – Causes, Symptoms, Types, Prevention and Treatments (byjus.com)