Plaque in photos

Symptoms and syndromes in photos

Main » Infectious diseases » Arthropod-borne Infection » Plaque

Plague is now largely focal in distribution.

 Known and probable foci of plague

 Known and probable foci of plague

It spreads rapidly in conditions of war and other catastrophes, eg earthquakes. Recent epidemics have occurred in Vietnam.

Yersinia pestis in liver smear.

Photo 1. Yersinia pestis in liver smear. Y. pestis (syn. Pasteurella pestis) is a gram negative cocco-bacillus with bipolar staining. It is normally enzootic in rats. (X1250)

Plague is transmitted by fleas of the genus Xenopsylla. X. cheopis (2 & 3); X. ostia (4 & 5); X. braziliense (6 & 7). The rat flea X. cheopis is the main vector. (x60)

Male and female Xenopsylla fleas compared.

Photo 2. Male and female Xenopsylla fleas compared.

Male and female Xenopsylla fleas compared (X. cheopis)

Photo 3. Male and female Xenopsylla fleas compared (X. cheopis).

Male and female Xenopsylla fleas compared (X. ostia)

Photo 4. Male and female Xenopsylla fleas compared (X. ostia).

 Male and female Xenopsylla fleas compared (X. ostia) too

Photo 5. Male and female Xenopsylla fleas compared (X. ostia) too.

Male and female Xenopsylla fleas compared (X. braziliense)

Photo 6. Male and female Xenopsylla fleas compared (X. braziliense).

Male and female Xenopsylla fleas compared (X. braziliense) too

Photo 7. Male and female Xenopsylla fleas compared (X. braziliense) too.

Proventiculus of X. cheopis blocked by plaque bacilli.

Photo 8. Proventiculus of X. cheopis blocked by plaque bacilli.

Hungry fleas leave dying domestic rats (R. norvegicus, R. rattus) often with their foreguts blocked by bacilli. In this condition they will attempt to feed on any animal. If they bite man they transmit the disease. (x 120)

Metal guards preventing acces of along ship hawsers.

Photo 9. Metal guards preventing acces of along ship hawsers. Plague control demands strictly enforced rodent control measures and international quarantine regulations, particularly for shipping.

Bubonic plaque.

Photo 10. Bubonic plaque. One of the most characteristic clinical features is lymphadeno- pathy with suppuration especially in the inguinal and axillary regions.

Pneumonic plaque.

Photo 11. Pneumonic plaque. Pneumonic infection allows direct spread of bacteria from man to man. The X-ray shows infection in the left lower lobe on the second day of the illness.


» Yellow Fever
» Dengue
» Southeast asian haemorrhagic fever
» Japanese B encephalitis
» Louse-borne Typhus
» Scrub Typhus
» Tick Typhus
» Q Fever
» Plaque
» The relapsing fevers
» Bartonellosis (Carrions disiease)
» Malaria
» Babesiasis in Man
» African Trypanosomiasis
» Chagas disease
» Leishmaniasis
» Visceral Leishmaniasis (Kala-azar, Dum-Dum Fever, Black Sickness)
» Old World Cutaneous Leishmaniasis
» New World Cutaneous Leishmaniasis
» Mucocutaneous Leishmaniasis
» Diffuse cutaneous leishmaniasis (DCL)
» Nematodes in the filariases
» Loaiasis
» Onchocerciasis
» Other Filariases


Nikolay Kushpela medical-photographs.com 2017