Give an account of classification of bacteria based on the shape.

Describe the role of microbes in agriculture and industries.

Explain the various types of viruses with examples.

Suggest the immunization schedule for a new born baby till 12 months of age. Why it is necessary to follow the schedule?

Name the causative agent of typhoid in human. How does the pathogen gain entry into the human body? Write the diagnostic symptoms and mention the organ that is affected in severe cases.