West Nile Virus – Spain

A man in Sevilla, Spain has been infected with West-Nile Virus and is hospitalized.

West-Nile virus is spread by Celuz pipiens and Celuz perexiguus, mosquitos which normally are not native to Southern Europe. Their spread is explained by the effects of climate change. There is no treatment available, the symptoms, i.e. meningitis, encephalitis and flaccid paralysis can be lethal.

This is the second case of West Nile Virus in Spain after a 73-year-old woman died a month prior, also in Sevilla. The man remains hospitalized

Female anopheles albimanus mosquito

Photo: Many types of mosquitoes are vectors for Jamestown Canyon virus.

West Nile virus has been the leading cause of mosquito-borne disease in the United States. No vaccines for humans exist to prevent, nor do specific medications to treat it exist.

West Nile virus is primarily transmitted by mosquitoes, mostly species of Culex and related to Zika, dengue and yellow fever viruses.

In humans, West Nile virus can cause a disease known as West Nile fever. Approximately 80% of infected people have few or no symptom, while around 20% of people develop mild symptoms (such as fever, headache, vomiting, or a rash), and less than 1% of people develop severe symptoms (such as encephalitis or meningitis)

The virus was discovered in Uganda in 1937 and was first detected in North America in 1999. West Nile Virus has been reported in Europe, Africa, Asia, Australia, and North America.

<<< Back to alert index

Follow us

While you are here, help us with

Access to Essential Drugs

One third of children, women and men have no access to essential medicines, putting lives at risk. Hospitals frequently run out of medicines and other essential supplies. Our Med-Aid program connects hospitals with aid and ensures that they receive exactly what they need.

Access to Diagnostics

Much of today’s innovation is either not reaching or not suitable for people in developing countries.

Data to Improve Health

Faster and reactive systems to help provide lifesaving support to vulnerable communities.

Support our work. It only takes a minute but makes a world of difference!

With your help we can bring modern diagnostics and essential medicines to people in need, track disease outbreaks better and help prevent future pandemics.