
ALZHEIMER’S DISEASE
Alzheimer’s disease is a progressive neurodegenerative disorder that gently strips away memory, thinking skills, and the ability to carry out simple daily tasks. It is the most common cause of dementia among older adults, gradually impacting the parts of the brain that control thought, memory, and language.

BIRD FLU
Bird flu is an influenza virus that mainly infects birds but can occasionally spread to humans and other animals. Some strains, such as H5N1, can cause severe illness and are closely monitored for their pandemic potential.

CHAGAS DISEASE
Chagas disease is a parasitic infection caused by Trypanosoma cruzi. It remains a significant public health concern, with an estimated 8 million people infected globally.

CHIKUNGUNYA
Discover the history of chikungunya, from its identification in Tanzania in 1952 to major outbreaks across the Indian Ocean, Asia, Europe and the Americas. Explore key epidemiological data, the 2005–2006 La Réunion epidemic, viral evolution and the global public health challenges posed by this mosquito-borne disease.

CYCLOSPORIASIS
Cyclosporiasis is a foodborne intestinal infection caused by the microscopic parasite Cyclospora cayetanensis. It commonly causes prolonged watery diarrhea, abdominal cramps, nausea, fatigue and weight loss. Learn about its causes, transmission, symptoms, diagnosis, treatment, prevention and the latest 2026 outbreak.

DENGUE
Dengue is now one of the world’s most important mosquito-borne viral diseases. Its history stretches from poorly understood fever outbreaks to a global disease involving 4 virus serotypes, 100-400 million infections annually, and more than 14 million reported cases in 2024.

LEGIONNAIRES’ DISEASE
Legionnaires’ disease is a severe form of pneumonia caused by Legionella bacteria, often linked to contaminated water systems. Learn about its causes, symptoms, risk factors, diagnosis, treatment, prevention, and notable outbreaks.

MALARIA
Malaria is one of humanity’s oldest infectious diseases. The history of malaria stretches from ancient civilizations to modern molecular epidemiology, and its distribution has changed dramatically over time.

NOROVIRUS
Norovirus is a highly contagious virus that causes acute gastroenteritis, leading to symptoms such as vomiting, diarrhea, stomach cramps, nausea, and sometimes fever. It spreads easily through contaminated food, water, surfaces, or close contact with infected individuals.

RABIES
Rabies is one of the oldest infectious diseases known to humans. For thousands of years, people have feared the disease because of its dramatic neurological symptoms and almost inevitable death once clinical signs appear.

SALMONELLOSIS
Salmonellosis is one of the world’s most important foodborne bacterial infections. It is caused by Salmonella bacteria, and closely associated with contaminated food, poultry, eggs and contact with infected animals.









