Nigeria: Lassa fever tops 100 cases in 2021

From NewsDesk @ bactiman63

The Nigeria Center for Disease Control (NCDC) reported additional confirmed cases of Lassa fever in the week ending February 21, bringing the country’s total to 102.

In addition, three more deaths were reported, bringing the death toll to 22 in the first seven weeks of 2021.

These numbers are significantly lower than the number of confirmed cases / deaths in the record year 2020, when 586 cases / 103 deaths were reported over the same period.

A total of 8 states have registered at least one confirmed case in 32 local government areas for 2021. Of all confirmed cases, 85% are from the states of Edo (49%), Ondo (25%), and Taraba (11%).

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Lassa fever is an acute viral disease and a viral hemorrhagic fever (AF). The pathogen is a single-stranded ribonucleic acid (RNA) virus from the Arenaviridae family, the Lassa virus. This zoonotic disease is associated with high morbidity and mortality, which is transmitted by the multi-mammary rat (Mastomys natalensis), one of the most common rats in equatorial Africa. The disease was first discovered in 1969 in a town called Lassa in the Nigerian state of Borno.

The actual incidence rate in Nigeria is unknown, but the death rate ranges between 3% and 42% (and has remained between 20% and 25% for the past two years). Historically, outbreaks occur during the dry season (November to April); However, in recent years there have also been cases during the rainy season. Lassa fever was imported into non-endemic countries, including Great Britain, the USA and Germany.

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