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ContentsSynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferencesView all Images (3)
Potentially life-threatening emergency
Tetanus neonatorum
Other Resources UpToDate PubMed
Potentially life-threatening emergency

Tetanus neonatorum

Print Images (3)
Contributors: Neil Mendoza MD, William Bonnez MD
Other Resources UpToDate PubMed


Tetanus neonatorum is a severe clinical presentation of generalized tetanus in neonates. It is 1 of the 4 clinical patterns of tetanus (the other patterns being generalized tetanus, localized tetanus, and cephalic tetanus). All forms of tetanus are caused by the tetanus toxin produced by the bacterium Clostridium tetani. See tetanus for further discussion of other patterns.

Neonatal tetanus differs from the other clinical patterns of tetanus because it is the umbilical stump instead of a deep puncture wound that is inoculated by the bacterial spores. The umbilical stump thus acts as the portal of entry after contamination by nonsterile instruments or from the substances applied on it at birth that may include animal feces. In parts of the world where there are lower rates of maternal immunization against tetanus, where there is inadequate hygiene at the time of birth, or where there are cultural practices that lead to contamination of the umbilical stump, neonatal tetanus remains a significant cause of neonatal mortality.

The World Health Organization (WHO) initiated a program in 1999 to eliminate neonatal tetanus. As of August 2015, there is still a significant public health risk of neonatal tetanus in the following countries: Afghanistan, Angola, Central African Republic, Chad, Democratic Republic of Congo, Equatorial Guinea, Ethiopia, Haiti, Indonesia, Kenya, Mali, Niger, Nigeria, Pakistan, Papua New Guinea, Philippines (all except the Autonomous Region in Muslim Mindanao), Somalia, Sudan, South Sudan and Yemen.

Spores from C. tetani are distributed worldwide in soil. Since continued exposure in the environment is expected, a robust vaccination program is necessary to prevent infections. Vaccination of women of childbearing age has been shown to be highly effective in preventing cases of neonatal tetanus. Improving hygiene at the time of birth with handwashing, clean handling of the cord, and application of topical antibiotics are also important, even if the strength of the evidence is poor so far.

In developed countries such as the United States, tetanus neonatorum is rare due to near universal vaccination (vaccination occurs in childhood with boosters as recommended by the Advisory Committee on Immunization Practices).

The WHO definition for a clinical case of tetanus neonatorum is "any neonate with normal ability to suck and cry during the first 2 days of life and who, between 3 and 28 days of age, cannot suck normally and becomes stiff or has spasms (ie, jerking of the muscles)."

The infant presents with diffuse rigidity, muscle spasms, trismus (lockjaw), apnea, and inability to suck. Patients may also suffer symptoms of autonomic dysfunction such as labile blood pressures. These symptoms are quite similar to adult patients with generalized tetanus, although the rate of disease progression is typically more rapid in neonatal tetanus.

The median onset of symptoms after birth is after 5-7 days, but ranges from 3-14 days, depending on the amount of spores soiling the cord.

The symptoms are severe for up to 4 weeks (the neonate will typically require intensive care during this period). After the acute illness, symptoms continue to improve over the following weeks. Mortality is high in neonatal tetanus. Many patients who survive will be left with permanent disabilities including developmental delay.


A33 – Tetanus neonatorum

43424001 – Tetanus neonatorum

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Perinatal asphyxia with hypoxic-ischemic encephalopathy – Patients may present with feeding difficulties and abnormal posturing, but the timing and severity of symptoms is different in patients with tetanus neonatorum (who develop symptoms after the tetanus incubation period of 5-7 days).
  • Hypoglycemia – Laboratory evaluation can quickly rule out this diagnosis.
  • Hypocalcemic tetany – Laboratory evaluation can quickly eliminate this diagnosis.
  • Seizures – Diffuse rigidity, muscle spasms, and trismus (lockjaw) of tetanus neonatorum are generally clinically distinguishable from seizures.

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Last Updated: 03/28/2017
Copyright © 2018 VisualDx®. All rights reserved.
Potentially life-threatening emergency
Tetanus neonatorum
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Tetanus neonatorum : Seizures, Fever, Irritability, Muscle spasm, Opisthotonic posturing, Rigidity, Spasticity, Nuchal rigidity, Trismus, HR increased, Increased respiratory rate
Clinical image of Tetanus neonatorum
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