Signs
Outbreak
Milestones
Emerging pathogens
Misc
100

Koplik spots on the buccal mucosa are a hallmark of this viral infection.

What is measles?

100

This bacterial pathogen was responsible for the 2011 German outbreak linked to contaminated fenugreek sprouts.

What is Shiga-toxin–producing E. coli?

100

This antibiotic class, discovered in the 1940s, revolutionized the treatment of Gram-positive infections.

What are penicillins (β-lactams)?

100

This newly emerging yeast, often resistant to multiple antifungals, is associated with hospital outbreaks worldwide.

What is Candida auris? 

1st identified in ear canal of patient in Japan

100

This CCR5 antagonist is used as part of salvage therapy for multidrug-resistant HIV infections.

What is maraviroc?

200

The “ring-enhancing lesion” on brain imaging in an immunocompromised host is often caused by this protozoan.

What is Toxoplasma gondii?

200

This 1976 outbreak among American Legion convention attendees led to the identification of this bacterium.

What is Legionella pneumophila?

200

This live-attenuated vaccine for tuberculosis is still used in endemic regions.

What is BCG (Bacillus Calmette–Guérin)?

200

This saprophytic soil fungus is endemic to Southeast Asia and Northern Australia and is the cause of melioidosis.

What is Burkholderia pseudomallei?

200

 This protozoan parasite, transmitted by sandflies, can cause diffuse cutaneous or visceral disease, including kala-azar.

What is Leishmania donovani?

300

The “bull’s-eye” erythema migrans rash is the hallmark of this tick-borne disease

What is Lyme disease?

300

The 2001 U.S. bioterrorism attacks involved spores of this bacterium.

What is Bacillus anthracis?

300

These organisms are potential reasons for false positive TB quants. 

Mycobacterium

-marinum

-szulgai

-kansasii

300

The “chikungunya” virus gets its name from a word meaning “that which bends up” due to this clinical feature.

What is severe joint pain/arthralgia?

300

This enzyme is the target of bictegravir and dolutegravir.

What is HIV integrase?

400

The “saddleback” biphasic fever pattern is characteristic of this mosquito-borne virus. 

What is dengue?

400

This severe viral outbreak in West Africa from 2013–2016 caused over 11,000 deaths.

What is Ebola virus disease?

400

This scientist demonstrated that H. pylori infection causes peptic ulcers by self-experimentation.

Who is Barry Marshall?

400

This protozoan parasite, transmitted by sandflies, can cause diffuse cutaneous or visceral disease, including kala-azar.

What is Leishmania donovani?

400

This bacterial disease struck American troops during the Spanish-American War at Camp Wikoff, linked to contaminated beef.

What is typhoid fever?

500

The triad of fever, rash, and eosinophilia after antibiotic exposure is a clue to this hypersensitivity syndrome.

What is DRESS (Drug Reaction with Eosinophilia and Systemic Symptoms)?

500

This WHO-coordinated campaign eliminated this animal infection, making it the second disease eradicated after smallpox.

What is rinderpest virus?

500

The first recombinant DNA hepatitis B vaccine was licensed in this decade.

What is the 1980s?

500

"Blackwater fever,” characterized by dark urine and hemolysis, is a severe complication of infection with this parasite.

What is Plasmodium falciparum?

500

Pain in the right upper quadrant after drinking alcohol, known as Fitz-Hugh–Curtis syndrome, is caused by this pathogen.

What is Chlamydia trachomatis (or Neisseria gonorrhoeae)?