Suggested
Wellness Blog
08 Jul 2025
70 Viewed
Contents
Yellow fever is a viral haemorrhagic disease transmitted by infected mosquitoes, most commonly found in parts of Africa and South America. Though not present in India, it remains a travel concern for individuals visiting high-risk regions. The illness ranges from mild to severe, sometimes leading to fatal complications such as liver failure or internal bleeding.
With global travel on the rise, awareness of yellow fever symptoms, causes of yellow fever, and effective prevention methods is essential. Timely diagnosis and vaccination remain the most effective forms of protection against this serious illness. Here’s what you need to know about yellow fever.
Yellow fever is a viral disease caused by the yellow fever virus, a flavivirus spread through the bites of infected mosquitoes, particularly Aedes and Haemagogus species. It gets its name from the jaundice (yellowing of the skin and eyes) that some patients develop in more severe cases. Although yellow fever is not directly contagious from person to person, its impact can be widespread in outbreak-prone areas. This disease is recognised for its rapid onset and potential to escalate into life-threatening stages without prompt medical care.
The causes of yellow fever lie in the transmission of the virus by mosquitoes, primarily in tropical and subtropical regions. When a mosquito bites an infected human or monkey and then bites another person, the virus is passed on. Transmission occurs mostly during the day, and the virus incubates in the body for 3 to 6 days before symptoms appear.
There are three transmission cycles: sylvatic (jungle), intermediate (savannah), and urban. In urban settings, the virus can spread quickly through densely populated areas lacking proper mosquito control. Environmental factors like rainfall and deforestation also influence transmission rates.
The yellow fever symptoms vary depending on the severity and stage of infection. Initial signs are often mistaken for the common flu but can progress rapidly:
Most individuals experience yellow fever in its acute phase, which lasts 3–4 days:
About 15% of patients may enter the toxic phase, which can be life-threatening:
Also Read: Viral Fever: Causes, Symptoms, & Treatment
Yellow fever diagnosis involves a combination of clinical observation and laboratory tests:
Currently, there is no yellow fever cure, and treatment is supportive in nature. It focuses on managing symptoms and preventing complications:
Yellow fever prevention is highly effective and relies on vaccination and mosquito control:
Region | Annual Cases (Est.) | Vaccine Coverage | Outbreak Frequency |
Sub-Saharan Africa | 84,000+ | 50–60% | High |
South America | 10,000+ | 65–75% | Medium |
Central America | Rare | 70%+ | Low |
Asia (including India) | 0 | N/A | None |
Although yellow fever disease does not occur in India, the government has implemented preventive travel protocols. All travellers arriving from or transiting through yellow fever-endemic countries must present valid vaccination certificates.
The vaccine should be taken at least 10 days before travel. Indian ports of entry monitor compliance strictly. Designated yellow fever vaccination centres are authorised to issue internationally recognised certificates. Travellers without proof of vaccination may be quarantined. Thus, awareness and adherence to travel guidelines are crucial for ensuring individual and public safety.
Also Read: What is Cumulative Bonus in Health Insurance and How Does It Work?
While yellow fever is preventable, treatment costs during international travel can be substantial. Fortunately, plans like Bajaj Allianz Health Insurance, with its 18,400+ hospital network, offer extensive support in managing infectious diseases.
Coverage may include hospitalisation, diagnostics, and post-recovery care, depending on policy terms. It’s advisable to choose international coverage if travelling to high-risk zones. Bajaj Allianz Health Insurance also offers plans that cater to travel health risks, including vector-borne illnesses, offering peace of mind wherever you go.
Yellow fever remains a dangerous but preventable disease, especially for global travellers. Understanding yellow fever symptoms, recognising risk areas, and taking proper precautions such as vaccination are vital steps in personal protection. While there's no specific yellow fever cure, timely treatment can reduce risks. Stay informed, stay protected.
Is yellow fever present in India?
No, yellow fever is not found in India. However, strict vaccination requirements are in place for travellers coming from affected countries to prevent potential outbreaks.
What are the vaccination requirements for travellers regarding yellow fever?
Travellers to or from yellow fever-endemic regions must carry an international vaccination certificate, issued at least 10 days prior to travel, as per WHO regulations.
Does Bajaj Allianz Health Insurance cover treatment for yellow fever?
Yes, treatment may be covered if included in the policy terms, especially under this plans that account for vector-borne diseases like yellow fever.
How long does the yellow fever vaccine provide protection?
The yellow fever vaccine offers lifelong protection after a single dose, although some countries may still require proof of vaccination within the last 10 years.
Can yellow fever be transmitted from person to person?
No, yellow fever is not directly spread from person to person. It is only transmitted through the bite of infected mosquitoes.
*Standard T&C apply
**Insurance is the subject matter of solicitation. For more details on benefits, exclusions, limitations, terms, and conditions, please read the sales brochure/policy wording carefully before concluding a sale.
***Disclaimer: The content on this page is generic and shared only for informational and explanatory purposes. It is based on several secondary sources on the internet and is subject to changes. Please consult an expert before making any related decisions.
****Disclaimer: Vehicle specifications, features, and pricing may vary, and it is essential for readers to verify the latest information from authorised dealerships, manufacturers, or reliable sources before making any purchasing decisions.
50 Viewed
5 mins read
07 Nov 2024
113 Viewed
5 mins read
06 Nov 2024
341 Viewed
5 mins read
16 Apr 2025
33 Viewed
5 mins read
16 Apr 2025
What makes our insurance unique
With Motor On-The-Spot, Health Direct Click, etc we provide fast claim process , Our sales toll free number:1800-209-0144