Disease Outbreak Update: Rift Valley fever hits Sudan

28 Oct 2019


We publish biweekly updates on outbreaks of emerging infectious diseases from across the world.
Information available within this Disease Outbreak Update is produced by Program for Monitoring Emerging Diseases (ProMED)

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Rift Valley fever



Outbreak Update

There are 193 Rift Valley fever (RVF) cases – including 4 deaths – reported in Red Sea, River Nile, and Khartoum states since the onset of the disease on 28 Sept until 22 Oct 2019. The majority of cases (100) are in Red Sea. Of all cases reported, 94.8% have affected people over 5 years of age, and 83% are male.

Outbreak Response

Similar to the dengue response, the Sudanese Ministry of Health has activated response taskforce meetings and developed state-level preparedness and response plans. There has been a joint investigation by the Sudanese Ministry of Health, World Health Organization, and the Ministry of Animal Resources (MoAR) in locations where the outbreak has occurred.

Case definition and management training has been provided to 131 medical staff, and an isolation center has been established in Tagadom hospital in Red Sea state. In addition, 2200 mosquito nets have been distributed, 1330 homes have been inspected for breeding sites, and 3542 homes have been fogged in the state. Health promotion activities have been carried out at the household and community levels.

See the full ProMED post



Lassa fever



Outbreak Update

In the reporting week 41 (7-13 Oct 2019), 5 new confirmed cases were reported.

From 1 Jan-13 Oct 2019, a total of 4099 suspected cases have been reported from 23 states. Of these, 726 were confirmed positive, 19 were probable, and 3354 were negative (not a case). Since the onset of the 2019 outbreak, there have been 154 deaths in confirmed cases. Case-fatality ratio in confirmed cases is 21.2%.

Predominant age group affected is 21-40 years (range: greater than one month to 98 years; median age: 34 years). The male-to-female ratio for confirmed cases is 1:1.

A total of 8392 contacts have been identified from 21 states. Of these, 360 (4.3%) are currently being followed up, 7955 (94.8%) have completed 21 days follow-up, while 12 (0.1%) were lost to follow-up. A total of 132 symptomatic contacts have been identified, of which 65 (49.2%) have tested positive.

National Lassa fever multi-partner, multi-sectoral Technical Working Group (TWG) continues to coordinate response activities at all levels.

See the full ProMED post



The Program for Monitoring Emerging Diseases (ProMED), a program of the International Society for Infectious Diseases, is an internet-based reporting system) dedicated to rapid global dissemination of information on outbreaks of infectious diseases and acute exposures to toxins that affect human health, including those in animals and in plants grown for food or animal feed. Find out more on their website www.promedmail.org