The agent responsible for causing mad cow disease is thought to be a virus prion protozoan fungus TRUE ANSWER : ? YOUR ANSWER : ?
An important host defense of human beings is a dense resident microbiota associated with lungs uterus bladder vagina TRUE ANSWER : ? YOUR ANSWER : ?
The nature of the poliovirus gives for oral vaccination (satin vaccine) as part of the eradication programme is small dosage of wild-type live viruses formalin-inactivated viruses heat killed virus live attenuated strains of all three immunological types TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? The pathogen contains mycolic acid in its cell wall Antibodies to the pathogen are protective The pathogen can live inside macrophages None of these TRUE ANSWER : ? YOUR ANSWER : ?
The toxins produced by bacteria encourage bacterial reproduction All of these kill viruses interfere with physiological processes in the body TRUE ANSWER : ? YOUR ANSWER : ?
The influenza vaccine is administered each year because the vaccine is sufficiently toxic to make it necessary to administer only a small amount at any one time None of these mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines it is a polysaccharide vaccine that does not confer long-term protection TRUE ANSWER : ? YOUR ANSWER : ?
A major difference between EHEC and EPEC is EHEC secretes a Shiga-like toxin and EPEC does not EPEC passes through the placenta to infect the fetus and EHEC does not EHEC possesses a type III secretion system and EPEC does not EPEC rearranges host cell actin and EHEC does not TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following disease is caused by DNA viruses? Measles Poliomyelitis Yellow fever Small pox TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following disease is not caused by microbial protein toxin? Shigella dysentery Diphtheria Tuberculosis Botulism TRUE ANSWER : ? YOUR ANSWER : ?
The "A" subunit of diphtheria toxin lysis macrophages with the release of cytokines binds host cell receptors found on heart cells forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis TRUE ANSWER : ? YOUR ANSWER : ?