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MicroB CA
The general properties of bacteria are as follows:
They contain both RNA and DNA T
They have ribosomes T
They are smaller than 0.1micrometer F
Most have peptidoglycan T
Some may have flagella T
Regarding endotoxins and exotoxins:
Gram positive bacteria all produce endotoxin F
Exotoxins are proteins T
Exotoxins cause fever F
Exotoxins are antigenic T
Regarding sterilisation:
Hypochlorite can be used to clean up blood spills in the laboratory T
Plastic syringes can be sterilized by gamma irradiation T
An endoscope can be autoclaved to sterilized it F
Formaldehyde is used to wash hands F
Milk that is pasterised is sterile F
Zoonotics are only spread to veterinarians F
Rabies Immunoglobulin and vaccine should not be given together
Rabies is a live attenuated vaccine F
Disease can be confirmed by serology
Post infection can be treated by immunoglobulin because of the long incubation period
Yellow fever virus is spread by feces of animals F
The vaccinations can be prophylaxis for:
Herpes Simplex encephalitis F
Mumps meningitis T
Clinical features of mumps:
Rash F
Parotid swelling T
Orchitis may be a complication T
Koplik’s spots F
Life threatening Meningitis F
Cerebella ataxia is a complication of varicella
Varicella epidemic can cause increased cases of zoster F
Respiratory Syncytial virus can cause:
Broncholitis T
Epiglotitis F
Hepatitis F
Meningitis F
Upper Respiratory tract infection T
EBV causes infectious mononucleosis T
Genital herpes may be caused by HSV I T
Rash worsens after the fever subsides
The worse the thrombocytopenia the more severe the dengue F
May have pleural effusion in severe cases
Is a legally notifiable disease to the Minisry of Health
Has a primary incubation period of 3-6 weeks T
In a HIV positive community, the 1st Aids defining disease to manifest is pneumocystis
Is confirmed by ELISA
Carriers of Hepatitis B:
Are more common in females than males F
Can be infected with Hepatitis A T
Are protected against Hepatitis D F
May have anti-HBe in their serum T
Usually follows a subclinical infection T
Coxsackie virus A16 is a common cause of hand, food and mouth disease. T
Enteroviruses commonly cause enterocolitis in adults
EV71 may cause epidemics in children
Nipah virus:
Is a novel filovirus F
Can be transmitted with close contact with pigs
Can cause encephalitis