4) T cell mediated immunity

5) Antibody-mediated cellular dysfunction

246. Ulcerated mucosal lesions in the oral cavity near the opening of Stensen's ducts are referred to as

1) Koplik's spots

2) Luschka's spots

3) Burkitt's spots

4) Paget's spots

5) Verrucae

247. The severe form of measles pneumonia is characterized by all of the following features, EXCEPT

1) Destructive panbronchitis

2) Interstitial mononuclear infiltration

3) Foci of suppurative inflammation

4) Measles giant cells in the alveoli

5) Catarrhal bronchitis

248. Type A influenza virus infects all of the following hosts, EXCEPT

1) Horses

2) Humans

3) Pigs

4) Dogs

5) Birds

249. Impairment of bronchociliary function in influenza results in which of the following superinfections

1) Fungal

2) Bacterial

3) Protozoa

4) Mycoplasma

5) Chlamydia

250. The cause of poliomyelitis development is which of the following viral family

1) RNA retrovirus

2) RNA paramyxovirus

3) DNA picornavirus

4) DNA adenovirus

5) RNA togavirus

251. The common histological findings in pyogenic leptomeningitis include all of the following, EXCEPT

1) Neutrophil infiltration of the leptomeninges

2) Neutrophil deposition in the subarachnoidal space

3) Engorged blood vessels

4) Pyemic abscesses in the cerebral tissue

5) Edema of the cerebral tissue

252. An infectious agent, causing scarlet fever is which of the following

1) Beta-hemolytic Streptococcus group A

2) Streptococcus agalactiae

3) Streptococcus viridans

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4) Streptococcus pneumonia

5) Staphylococcus aureus

253. Streptococcal tonsillitis is characterized by predominant infiltration of which of the following cells

1) Macrophages

2) Neutrophils

3) Lymphocytes

4) Plasma cells

5) Erythrocytes

254. Scarlet fever is characterized by all of the following organ derangement, EXCEPT

1) Kidneys

2) Tonsillae

3) Skin

4) Liver

5) Lymph nodes

255. Microscopical features in streptococcal tonsillitis include all of the following, EXCEPT

1) Foci of necrosis

2) Microbial colonies

3) Leukocyte infiltration

4) Lymphocyte infiltration

5) Tissue edema

256. Meningococcal infections include all of the following variants, EXCEPT

1) Nazopharyngitis

2) Pyogenic meningitis

3) Meningococcemia

4) Pyogenic encephalitis

5) Chronic meningitis

257. The pathologic features in the skin found in meningococcemia is which of the following

1) Erythematous rash

2) Hemorrhagic rash

3) Furuncle

4) Impetigo

5) Koplik's spots

258. An infectious agent causing diphtheria is which of the following

1) Corynebacterium

2) Staphylococcus

3) Treponema

4) Bordeteha

5) Esherichia

259. Diphtheria is characterized by all of the foUowing organ derangement, EXCEPT

1) Nasopharynx

2) Oropharynx

3) Larynx

4) Trachea

5) Esophagus

260. Microscopic features in diphtheria include all of the following, EXCEPT

1) Neutrophilic infiltration

2) Vascular congestion

3) Interstitial edema

4) Hyaline deposition

5) Fibrin exudation

261. Expose to gastrointestinal infections can be reduced by of the following measures, EXCEPT

1) Disposal of waste and vermin

2) Killing parasites, which are the transmitters of these infections

3) Cleaning drinking water

4) Hand washing

5) Cooking food

262. Normal defenses against ingested gut pathogens include all of the following, EXCEPT

1) Activated C3 complement

2) Secreted IgA antibodies

3) Acid gastric juice

4) Viscous mucous layer covering the gut

5) Lytic pancreatic enzymes and bile detergents

263. В cells' secreting IgA in gastrointestinal infections are localised in which of the following part of the gastrointestinal tract

1) Muscle layer

2) Submucosa

3) Mucosa-associated lymphoid tissue

4) Regional lymphatic nodes

5) Serosa

264.The term "dysentery" refers to diarrhea associated with all of the following symptoms, EXCEPT

1) Abdominal cramping

2) Tenesmus

3) Stools containing blood

4) "Rice-water" stools

5) Stools containing pus and mucus

265. Shigellae cause all of the following pathologic processes, EXCEPT

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