Infectious Diseases

Viruses affect only humans.

Viruses are the most common cause of acute infections in humans.

In 1892, Dimitri Iwanowski did a study with diseased tobacco plants that was very important for virology. This study showed that:

Viruses are cellular organisms.

Viruses could be considered "Darwinian Machines" because:

There is evidence suggesting that polio has been around as far back as:

Viruses are naturally set to evolve best when they maximize:

Severe viral diseases are a failure of the virus to adapt to its host.

A virus has two phases. In the first stage, [blank_start]the virus is on its own, as a virion[blank_end]. In the second phase, [blank_start]the virus has entered an infected cell[blank_end].

All cellular life has the following characteristics in common (Check ALL that apply):

There are two main types of replication cycles for viruses. [blank_start]In both cycles[blank_end], the viral genome enters the host cell. [blank_start]In the Lytic Growth Cycle cycle[blank_end], the viral genome is replicated, viral proteins are created, and the viruses assemble inside the cell then exit. [blank_start]In the Lysogenic cycle[blank_end], the genome is integrated into the host DNA and transmitted to the host's daughter cells.

When washing your hands, you are more likely to destroy:

Zoonotic viruses are primarily hosted by:

Which of the following is NOT a factor affecting host range?

Rabies can be an extremely slow virus, taking up to over a year to kill its host. This is because the virus:

Bats and raccoons should not be handled with direct contact because:

Which of the following is NOT something we need to know to control a viral disease?

Herpes viruses can be considered like the diamonds in the movie "Diamonds are Forever" because:

Cytomegalovirus is a common form of herpes that commonly has no side effects. In this group of people, however, cytomegalovirus can cause blindness.

Which of the following are true of Epstein Barr Virus, or infectious mononucleosis? (Check ALL that apply)

Some herpes viruses have oncogenic (tumor-causing) properties.

Which of the following is NOT a potentially oncogenic virus?

Match the forms of cancer to the areas of the body they primarily affect. Burkitt's Lymphoma - [blank_start]The lymphatic system.[blank_end] Nasoparyngeal carcinoma - [blank_start]Head and neck.[blank_end] Cervical Carcinoma - [blank_start]The cervix.[blank_end] Kaposi's sarcoma - [blank_start]Blood vessels.[blank_end]

Lysis is a process in which non-enveloped viruses exit their host cell once they've multiplied enough. They do this by:

Which type of viral infection is the most common?