Malaria continues to be a serious public health concern across many parts of India especially in regions where mosquito-borne infections are widespread. The disease is caused primarily by two parasites Plasmodium falciparum and Plasmodium vivax, both transmitted through the bite of an infected female Anopheles mosquito. When diagnosed early and treated appropriately most patients recover well without lasting complications. However certain forms of malaria can deteriorate quickly. If treatment is delayed, the infection can spread beyond the bloodstream and begin affecting multiple organs. Emergency medical care is central to catching the disease early, starting treatment without delay and preventing the complications that make malaria dangerous.

What is Malaria?

Malaria is caused by Plasmodium parasites which are transmitted through the bite of an infected female Anopheles mosquito. Parasites travel to the liver, multiply, then re-enter the blood and infect red blood cells (RBCs). Inside RBCs they multiply again, eventually bursting the cell - this mass rupture releases toxins and triggers the characteristic fever, chills, and sweating.

Five species infect humans, of which P. falciparum is the most dangerous; P. vivax is the most widespread and can relapse from dormant liver stages called hypnozoites; P. ovale can also relapse; P. malariae causes a milder, longer infection; and P. knowlesi is an emerging pathogen in Southeast Asia.

Common Causes of Malaria

Plasmodium parasites enter the human body through several routes:

• Bite of an infected female Anopheles mosquito is the only natural transmission route; the mosquito feeds on an infected human, then passes the parasite to the next human it bites
• Blood transfusion from a donor with malaria parasites (rare)
• Shared needles 
• Mother to child (congenital malaria) 
• Organ transplantation (rare).

Signs and Symptoms of Malaria

Symptoms begin seven to fourteen days after an infectious bite. Although P. vivax and P. ovale can remain dormant in the liver for months before causing illness. Common symptoms are:

• Classic malarial paroxysm: Three stages: cold stage (shivering and rigours, 15 to 60 minutes), hot stage (fever of 39 to 41°C, headache, vomiting, two to six hours), and sweating stage (profuse sweating, falling temperature, exhaustion)
• Fever pattern: P. vivax and P. ovale every 48 hours (tertian fever); P. malariae every 72 hours (quartan fever) and P. falciparum often continuous or irregular, not cyclical
• Headache: Often severe, diffuse and persistent
• Muscle and joint pain: Generalised body aching (myalgia and arthralgia)
• Nausea, vomiting, and abdominal discomfort: Particularly in falciparum malaria
• Anaemia: Pallor, tiredness, and breathlessness from RBC destruction
• Jaundice (yellowing of skin and eyes): From haemolysis (RBC breakdown) releasing bilirubin
• Splenomegaly (enlarged spleen): The spleen clears parasitised RBCs and enlarges with ongoing infection.

First Aid for Malaria (Before Reaching Hospital)

First aid is supportive as diagnosis needs a blood test and treatment needs antimalarials:

• Manage fever: Give paracetamol at the correct dose for age and weight. Tepid sponging (wiping with a lukewarm cloth) helps lower the temperature. Do not use aspirin in children or in suspected dengue as aspirin increases bleeding risk.
• Prevent dehydration: Vomiting and sweating cause significant fluid loss so encourage water, ORS (oral rehydration solution), coconut water or diluted juice. 
• Control the environment: Keep the patient in a cool, well-ventilated room. Remove excess clothing during fever and add a blanket during rigours (shivering) to prevent injury.
• Do not delay hospital assessment: Fever with rigours in an endemic area, or after travel to one, requires a blood test (rapid diagnostic test or smear) the same day. Do not wait to see if the fever settles.
• Carry the patient's travel and medication history: Bring a list of recent travel, antimalarial prophylaxis (preventive medication) taken, and current medications.

When to Seek Emergency Care for Malaria

Uncomplicated malaria may be managed as an outpatient. These presentations require hospital admission:

• High fever not responding to paracetamol, or any fever in an infant under six months
• Altered consciousness, confusion, or seizures 
• Inability to take oral medication due to persistent vomiting
• Rapid breathing or difficulty breathing 
• Very dark or cola-coloured urine 
• Bleeding from the nose, gums, or skin 
• Reduced or absent urine for eight or more hours 
• Collapse, low blood pressure, or pallor with cold limbs 
• Pregnancy with malaria as falciparum malaria in pregnancy is a medical emergency.

Emergency Treatment at the Hospital for Malaria

Treatment depends on species, severity, and ability to tolerate oral medication:

• Diagnosis: RDT (Rapid Diagnostic Test) - finger-prick blood test detecting malaria antigens in 15 to 20 minutes that is positive in over 95% of falciparum cases. Peripheral blood smear identifies species, parasite density (percentage of RBCs infected) and ring forms, trophozoites, or gametocytes. Smear is repeated every 12 to 24 hours to assess treatment response.
• Blood tests: Full blood count, blood glucose, kidney and liver function, lactate and blood culture to exclude bacterial co-infection.
• Uncomplicated falciparum malaria: ACT (artemisinin-based combination therapy) is first-line in India, artesunate-lumefantrine or artesunate-amodiaquine for three days. Oral treatment is appropriate if the patient can take tablets and has no danger signs.
• Severe malaria: IV artesunate is the drug of choice over IV quinine. Given 2.4 mg/kg at 0, 12, and 24 hours, then daily. ICU admission, oxygen, IV fluids, blood transfusion for haemoglobin below 7 g/dL, renal support and anticonvulsants are managed in parallel.
• P. vivax and P. ovale: Chloroquine (first-line where sensitivity is confirmed) followed by a 14 day primaquine course to eliminate dormant liver stages (hypnozoites) and prevent relapse. G6PD (glucose-6-phosphate dehydrogenase) deficiency must be tested before primaquine as it causes severe haemolysis in deficient patients.

What Not to Do

These actions delay recovery or cause direct harm:

• Do not self treat with partial antimalarial courses 
• Do not ignore fever with rigours after travel to an endemic area 
• Do not give aspirin to children or to patients who may have dengue 
• Do not take chloroquine for falciparum malaria without resistance testing 
• Do not assume a negative RDT means no malaria as false negatives occur at very low parasitaemia.

Conclusion

Malaria is curable when diagnosed and treated promptly. Uncomplicated falciparum malaria treated with an artemisinin-based combination therapy within 24 hours resolves within 3 to 5 days. At CARE Hospitals, RDT and blood smear are available around the clock, IV artesunate is stocked for severe cases, and the infectious disease team manages complicated presentations. Do not wait for a second febrile episode.

FAQs

1. What are the early symptoms of malaria?

Fever, shivering, headache, muscle aches, nausea and sweating are early symptoms that typically begin seven to fourteen days after an infectious bite. The classic cold-hot-sweating pattern is most pronounced with P. vivax and P. ovale.

2. When is malaria considered a medical emergency?

Altered consciousness, seizures, intractable vomiting, dark urine, rapid breathing, bleeding, reduced urine output or collapse - all indicate severe malaria requiring hospital admission and IV artesunate.

3. How is malaria transmitted?

Almost exclusively through the bite of an infected female Anopheles mosquito. Rare routes include:

• Blood transfusion
• Shared needles
• Mother to child during childbirth
• Organ transplantation (rare).

4. What should I do if I have a fever with chills?

Take paracetamol, drink oral fluids, and go for a malaria blood test the same day. RDT results are available in 15 to 20 minutes and do not wait for a second episode.

5. How long does recovery from malaria take?

Uncomplicated malaria treated with ACT resolves in three to five days. The fever clears in 24 to 48 hours and the parasites by day three. Vivax malaria requires a 14-day primaquine course to prevent relapse.

6. Is hospitalisation required for severe malaria?

Yes severe malaria requires ICU care with IV artesunate, oxygen, transfusion (if haemoglobin falls below 7 g/dL), renal support, and anticonvulsants. All children under five with falciparum malaria and all pregnant women with malaria are admitted.

7. What foods should be taken during malaria recovery?

Consume:

• High fluid intake like water, ORS, coconut water, diluted juices
• Easily digestible carbohydrates like rice, toast and banana
• Iron-rich foods like dal, leafy vegetables and eggs
• Avoid alcohol as it impairs immunity and worsens liver inflammation.

CARE Medical Team