Influenza

Q.

State two main causes of disease.

Q.

Mention the diseases caused by external factors.

Q.

Match the Column A with Column B:

Column 1	Column 2
Column A Cholera	Column B Kwashiorkor
Typhoid	Scurvy
Tuberculosis	Vibrio cholerae
Iron	Mycobacterium tuberculosis
Pneumonia	Salmonella typhi
Protein deficiency	Anaemia
Vitamin C	Diplococcus pneumoniae

Q.

Read the following statements and write your answer as true or false.

Polio and Plague are viral diseases.

1. True
2. False

Q.

List out the few diseases caused by bacteria. [2 MARKS]

Q. How many types of causes are there for any disease?

1. 1
2. 2
3. 3
4. 4

Q. Generally Streptococcus pneumoniae causes pneumonia, but which other bacteria may also cause the same disease?

1. Plasmodium vivax
2. Haemophilus influenzae
3. Mycobacterium tuberculosis
4. Pneumococcus sp.

Q. There are three major types of Influenza viruses: Influenza A, Influenza B, and Influenza C. All three types of viruses cause flu - like symptoms in humans including fever, muscle aches, headache, and fatigue, but only Influenza A can infect humans and other mammals as well as birds.
The letters H and N are included in naming many influenza viruses because the outer envelope of these viruses is covered with two types of glycoproteins, an H protein (hemagglutinin) and an N protein (neuraminidase). These glycoproteins enable viruses to bind to and fuse with the host cell plasma membrane.
The H1N1 Influenza A virus was responsible for the 1918 and 2009 deadly worldwide pandemics and genetic analysis revealed that H1N1 has a mixture of genetic material from pigs, birds, and humans.
Which of the following best explains how some Influenza A viruses have genetic material from a variety of host species?

1. Viral genetic material could combine in a pig who is infected with both the pig flu and the bird flu viruses, and this recombinant strain can combine in a person who is infected with the human flu virus.
2. Viral genetic material may be recombined via conjugation in a bird who is infected with all three viruses.
3. Mutations in glycoprotein structure may spontaneously arise in farm workers in close proximity to chickens and pigs, thus leading to recombinant viral strains.
4. A bird virus could incorporate human host cells infected with pig flu virus into its genome, thus leading to recombinant viral strains.

Q. Which of the following is a viral infection?

1. Dipteria
2. Influenza
3. Cholera
4. Typhoid

Q. Bacillus haemophilus causes

1. Pneumonia
2. Influenza
3. A form of meningitis in young children
4. Whooping cough

Q. Generally Streptococcus pneumoniae causes pneumonia, but which other bacteria may also cause the same disease?

1. Pneumococcus sp.
2. Mycobacterium tuberculosis
3. Plasmodium vivax
4. Haemophilus influenzae

Q. Which of the following is the causative organism of influenza?

1. Rhinovirus
2. Myxovirus
3. Streptococcus
4. Salmonella

Q. Name the diseases which is caused by virus.

1. Tuberculosis
2. Influenza
3. Cholera
4. All of the above

Q. Hemorrhagic Septicaemia is caused by ______________.

1. Pasteurella multocida
2. Clostridium chauvoei
3. Both A and B
4. None of the above

Q.

Match the diseases in the left column with the pathogens in the right column.

Column 1	Column 2
Jaundice	Salmonella typhii
Rabies	Aedes sp.
Typhoid	Mycobacterium tuberculosis
Vector of dengue	Lyssavirus
Tuberculosis	Virus