Saudi Arabia’s government has spent much of the last decade trying to promote the nation as a cultural and economic superpower. It has achieved this through massive investment in the tourism sector and by hosting various high-profile sporting events. The Saudi government clearly also prioritizes the population’s health with the latest available figures from the World Health Organization (WHO) suggesting that 12.8% of Saudi Arabia’s public expenditure is dedicated to public health projects. This is significantly higher than both the global average of 10.8% and the average of 8.3% that Saudi Arabia’s eastern Mediterranean neighbors spend. Despite this, some communicable diseases continue to pose a significant risk to public welfare. Here is information about the diseases impacting Saudi Arabia and the efforts to address them.

 1. Dengue Fever

Dengue fever, which the mosquito-borne Orthoflavivirus causes, can cause high fever, muscle pain and large rashes. Rising average temperatures across the Mediterranean have allowed mosquitoes to spread north from East Africa to the Middle East. This has increased Saudi Arabia’s mosquito population and has contributed to a rise in infection rates since the 1990s. These rates spike each year during the holy month of Ramadan, where this year, more than 122 million worshippers visited the city of Mecca in western Saudi Arabia.

Large gatherings of people from outside the country, who have had no previous exposure to the virus and have therefore built no immunity, can allow it to spread rapidly if they do not take the necessary precautions, such as wearing insect-proof clothing and sleeping under mosquito nets.

The Saudi health ministry has invested heavily in raising awareness of behaviors that prevent the spread of mosquitoes among locals. This helped reduce the number of annual reported infections from 4,266 in 2018 to 1,888 the following year.

2. MERS-CoV

Middle East respiratory syndrome coronavirus (MERS-CoV) is one of the most recently identified diseases impacting Saudi Arabia. In early 2025, the Saudi health ministry confirmed nine cases, including two deaths.

MERS-CoV produces flu-like symptoms and infects patients through their respiratory system. Experts believe it has passed to Saudi Arabia’s rural population through contact with dromedary camels, which people widely use for transportation across the country’s deserts.

 3. Meningitis

The Saudi health ministry identified 11 cases of meningitis in March 2025, with the WHO identifying a further 17 in April. In response to this, the Saudi health ministry now requires anyone entering the country to receive a quadrivalent meningococcal vaccine at least 10 days prior to their arrival. At the time, estimates indicated that only 54% of international visitors to Saudi Arabia met the vaccination requirements.

The Saudi health ministry highlighted the importance of vaccination to citizens in its public health campaigns. This complements a post-exposure chemoprophylaxis scheme, in which close contacts of patients receive antimicrobial prophylaxis in order to prevent further transmission.

The U.K. Health Security Agency (UKHSA) has classified meningococcal meningitis as one of the diseases impacting Saudi Arabia, which poses the greatest risk to British tourists visiting the country. The UKHSA’s current guidance urges tourists travelling to Saudi Arabia to ensure they receiv meningitis vaccinations before they travel.

 4. Tuberculosis

Tuberculosis (TB) is one of the most widely researched diseases impacting Saudi Arabia. Since 2021, Saudi Arabia’s National Tuberculosis Programme has focused on training hospital staff to prevent TB being transmitted between patients, and investing in specialist TB hospitals.

These efforts to curb the spread of the disease have reduced the infection rate from 23 infections per 100,000 people in 2000, to 8.4 infections per 100,000 people in 2023. This meets the targets set out in the UN’s Sustainable Development Goal 3, which focuses on health and well-being.

Despite this success, TB remains more prevalent in Saudi Arabia than in the neighboring United Arab Emirates, and in much of Europe, including the U.K. 

5. Brucellosis

Brucellosis is a zoonotic disease transmitted to humans through contact with animals such as sheep, goats and camels, and through drinking their unpasteurized milk. Many epidemiologists believe it to be the most widespread zoonotic infection in the world.

Infection rates have dropped in Saudi Arabia over the last 30 years, partially due to urbanization reducing the number of people working in agriculture. Despite this, the disease remains endemic in rural communities.

Antibiotics such as Doxycycline can treat brucellosis, with ongoing humanitarian efforts focusing on supplying these medicines to remote areas.

Future Steps

Internal and external efforts to raise public awareness of vital health practices and improve the supply of treatments to rural communities are combating diseases impacting Saudi Arabia. Recent outbreaks, however, prove that substantial government funding of the health ministry and international co-operation remain crucial to further reducing the threat that communicable diseases pose across the country.

– Billy Stack

Billy is based in London, UK and focuses on Global Health for The Borgen Project.

Photo: Unsplash