Which of these statements concerning Creutzfeldt-Jakob disease(CJD) and vCJD is true?a) CJD occurs in children; vCJD occurs in adults over 45.b) CJD and vCJD are fatal in under 50% of cases.c) CJD is caused by prions; vCJD is a viral infection.d) Only humans suffer from diseases like CJD and vCJD.e) Both CJD and vCJD produce a spongy appearance in affected brain tissue.

In December 2019, a family in Asia detected signs and symptoms of pneumonia. Laboratory diagnosis detected a virus belonging to the Group of Betacoronaviruses. Within a week, several people within the community began experiencing similar symptoms. It gradually spread to the entire city. In the field of Microbiology, this city may be experiencing a/an ………………………………….……. If this infection spreads globally, it may be deemed a ……………………………………….... If the infection is contracted by an individual who travelled to West Africa, the infection will be known to have been ……………………………………………. And this person will be a/an …………………………………………….. If this person visibly presents with visible signs of the infection, He will be known to be ……………………………………………………… Other individuals who incubate the pathogen but do not show any signs and symptoms of the disease are known as …………………………………………………………………………..

Emerging diseases such as AIDS and ebola virus have only fairly recently become a problem because a) they only recently evolved b) means of immunization have recently failed c) humans have only recently come into contact with other species that carry these diseases d) practices of modern life make us more susceptible to such diseases Please answer very carefully.

At what age is the first dose of the measles, mumps, and rubella (MMR) vaccine typically administered? A) At birth B) 2 months C) 12-15 months D) 4-6 years