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Difference Between Malaria and Typhoid

February 4, 2018Posted byRanidu

Key Difference – Malariavs Typhoid

Malaria and typhoid used to be two of the commonest infectious diseases seen in the tropical world. Malaria is an infectious disease caused byprotozoathat are transmitted by the anopheline mosquitoes. On the other hand, enteric fever is an acute systemic illness characterized by fever, headache, and abdominal pain and typhoid and paratyphoid are the two variants of enteric fever caused bySalmonella typhiandparatyphi.Although malaria is caused by a protozoan, enteric fever (Typhoid or Paratyphoid fever) is caused by a bacterium.This is thekey differencebetween the two diseases.

CONTENTS

1.Overview and Key Difference
2.What is Malaria
3.What is Typhoid
4.Similarities Between Malaria and Typhoid
5.Side by Side Comparison – Malaria vs Typhoid in Tabular Form
6.Summary

What is Malaria?

Malaria is an infectious disease caused by protozoa that are transmitted by theanophelinemosquitoes. There are four main types protozoa that can cause human malaria;

  • Plasmodium vivax
  • Plasmodium falciparum
  • Plasmodium malariae
  • Plasmodium ovale

There is a high rate of incidence and prevalence of malaria in the tropical countries because of the climate and monsoon rains that favour the breeding of vector mosquitoes as well as the survival of the disease-causing protozoan.

Clinical Features

There is an incubation period of 10-21days. Usually, there is a persistent fever initially. Later the typical tertian or quaternary fever appears. Along with fever, the patient can have malaise, nausea, vomiting, and diarrhea. Clinical picture can vary according to the type of protozoan that causes the disease.

Malaria Caused byPlasmodium vivax and Plasmodium ovale

There is usually a mild infection with progressively worseninganemia. Tertian fever is the hallmark feature of the disease caused by these protozoa. Hepatosplenomegaly can also be present. Recurrence can occur due to the reactivation of hypnozoites that remain dormant.

Malaria Caused byPlasmodium falciparum

This is the most severe form of malaria. In most of the occasions, the disease is self –limiting but can give rise to fatal complications in a minority of cases. The condition of the patient can deteriorate rapidly, and death can occur in a matter of few hours. High parasitemia is a reliable indicator of disease severity. Cerebral malaria is the most feared complication of falciparum malaria. Altered consciousness, confusion, and convulsions are the suggestive signs of cerebral malaria.

Features of severe Falciparum Malaria

  • CNS – prostration, cerebral malaria
  • Renal – uremia, oliguria, hemoglobinuria
  • Blood – severe anaemia, disseminated intravascular coagulation, bleeding
  • Respiratory –tachypnea, acute respiratory distress syndrome
  • Metabolic –hypoglycemia, metabolic acidosis
  • Gastrointestinal –diarrhea,jaundice, splenic rupture

Diagnosis

Identification of parasites in thick or thin blood films is the diagnostic test. In endemic areas, malaria should be suspected whenever a patient presents with a febrile illness.

Management

Uncomplicated Malaria

Chloroquine is the drug of choice. Primaquine is started once the parasitemia has been successfully eliminated in order to eradicate the hypnozoites.The drug course should be continued for 2-3 weeks.

Difference Between Malaria and Typhoid

Figure 01: Life cycle of Malaria-causing Protozoan

Complicated Malaria

The use of intravenous artesunate is more effective during the treatment. Intensive care may be needed. Transfusion is advocated in severe anemia.

What is Typhoid?

伤寒肠热病生产是一种急性系统性疾病erized by fever, headache, and abdominal pain. Typhoid and paratyphoid are the two variants of enteric fever caused bySalmonella typhiandparatyphirespectively. The infectious agent is transmitted by the consumption of contaminated water and food.

Clinical Features

Clinical features appear after an incubation period of 10-14 days.

  • Intermittent fever
  • Headache
  • Abdominal pain
  • Hepatosplenomegaly
  • Lymphadenopathy
  • Maculopapular rash
  • If not treated, the patient can get complications such as intestinal perforations, lobar pneumonia,meningitisetc.

Diagnosis

Definitive diagnosis is through the culture of organisms from blood samples obtained from the patient. Leucopenia is common but nonspecific.

Key Difference Between Malaria and Typhoid

Figure 02: Salmonella typhi

Management

Nowadays, quinolones are the drug of choice in the management of enteric fever. Earlier cotrimoxazole and amoxicillin were also used, but their importance has gone down due to the emerging resistance against them.

What is the Similarity Between Malaria and Typhoid?

  • Both malaria and typhoid are infectious diseases.

What is the Difference Between Malaria and Typhoid?

Malaria vs Typhoid

Malaria is an infectious disease caused by protozoa that are transmitted by the anopheline mosquitos. Enteric fever (Typhoid) is an acute systemic illness characterized by fever, headache, and abdominal pain.
Transmission
Protozoan is transmitted by anopheline mosquito Typhoid is transmitted by the consumption of contaminated food and water.
Infectious Agent
The infectious agent is a protozoan. The infectious agent is a bacterium
Clinical Features
There is an incubation period of 10-21days.

Usually, there is a persistent fever initially. Later the typical tertian or quaternary fever appears. Along with fever, the patient can have malaise, nausea, vomiting, and diarrhoea.

Clinical picture can vary according to the type of protozoan that causes the disease.

In vivax and ovale malaria,

There is a tertian fever with Hepatosplenomegaly.

Clinical features appear after an incubation period of 10-14 days.

· Intermittent fever

· A headache

· Abdominal pain

· Hepatosplenomegaly

· Lymphadenopathy

· Maculopapular rash

· If not treated, the patient can get complications such as intestinal perforations, lobar pneumonia, meningitis etc.

Diagnosis
Identification of parasites in thick or thin blood films is the diagnostic test. In endemic areas, malaria should be suspected whenever a patient presents with a febrile illness. Definitive diagnosis is through the culture of organisms from blood samples obtained from the patient. Leucopenia is common but nonspecific.
Treatment
Treatment of uncomplicated malaria

Chloroquine is the drug of choice. Primaquine is started once the parasitemia has been successfully eliminated in order to eradicate the hypnozoites. The drug course should be continued for 2-3 weeks.

Treatment of complicated malaria

The use of intravenous artesunate is more effective. Intensive care may be needed. Transfusion is advocated in severe anaemia.

Nowadays, quinolones are the drug of choice in the management of enteric fever.

Earlier cotrimoxazole and amoxicillin were also used, but their importance has gone down due to the emerging resistance against them.

Summary – Malariavs Typhoid

Malaria is an infectious disease caused by protozoa that are transmitted by the anopheline mosquitos whereas enteric fever is an acute systemic illness characterized by fever, headache, and abdominal pain. Typhoid and paratyphoid are the two variants of enteric fever caused bySalmonella typhiandparatyphi. The difference between the two illnesses is, a group of protozoa causes malaria, but it is a group of bacteria that causes typhoid fever.

Download the PDF of Malaria vs Typhoid

You can download the PDF version of this article and use it for offline purposes as per citation note. Please download the PDF version here:Difference Between Malaria and Typhoid

Reference:

1.Kumar, Parveen J., and Michael L. Clark. Kumar & Clark clinical medicine. Edinburgh: W.B. Saunders, 2009.

Image Courtesy:

1.’Malaria lifecycle-CDC’ ByCenters for Disease Control and Prevention (CDC)(Public Domain) viaCommons Wikimedia
2.’Salmonella typhosus, cause of typhoid fever’ by Kat Masback(CC BY-SA 2.0)viaFlickr

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Filed Under:DiseasesTagged With:Compare Malaria and Typhoid,Falciparum Malaria,Malaria,Malaria Agent,Malaria and Typhoid Differences,Malaria and Typhoid Similarities,Malaria Cause,Malaria Clinical Features,Malaria Definition,Malaria Diagnosis,malaria symptoms,malaria treatment,Malaria Types,Malaria vs Typhoid,Plasmodium vivax malaria,Treating Complicated Malaria,Treating Uncomplicated Malaria,Typhoid,Typhoid Agent,Typhoid Cause,Typhoid Clinical Features,Typhoid Definition,Typhoid Diagnosis,Typhoid Symptoms,Typhoid Treatment,Typhoid Types

About the Author:Ranidu

Ranidu is passionate about writing articles on medical topics in general parlance. His experience in communicating with the general public during his medical practice has enabled him to describe facts that a layman has to know about a particular disorder in a concise and understandable manner.

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