Explanation

In general, the cancer in a human body is caused by changes to DNA.

DNA stands for Deoxyribonucleic acid

Explanation

The incubation period occurs in an acute disease after the initial entry of the pathogen into the host (patient).

It is during this time the pathogen begins multiplying in the host.

However, there are insufficient numbers of pathogen particles present to cause signs and symptoms of disease.

Explanation

This virus requires hepadna virus helper functions for propagation in hepatocytes,

and is an important cause of acute and severe chronic liver damage in many regions of the world.

Explanation

The influenza pandemic occurs every 7 to 10 years and is known as a cyclic or periodic distribution

This cyclical pattern is characteristic of certain infectious diseases,

including influenza, which exhibits periodic outbreaks or epidemics on a global scale.

Explanation

A well-accepted example of pleomorphism is Helicobacter pylori, which exists as both a helix-shaped form (classified as a curved rod) and a coccoid form.

H. pylori is a type of bacteria that infects your stomach the first part of your small intestine (the duodenum).

This can cause redness and soreness (inflammation)

Explanation

Parvoviruses are single-stranded DNA viruses that have a predilection for mitotically active host cells.

Parvoviruses that infect rats include (Kilham's) rat virus (RV), (Toolan's) H-1 virus, rat parvovirus (RPV), and rat minute virus (RMV).

Explanation

Bradycardia is a slower-than-normal heart rate (below 60 beats per minute (bpm))

Bradycardia can cause you to feel faint, dizzy, short of breath, fatigued, or have chest pain.

Explanation

elephantiasis caused by infection with parasites classified as nematodes (roundworms)

Lymphatic filariasis, commonly known as elephantiasis, is a painful and profoundly disfiguring disease.

Explanation

Xerostomia is dryness in the mouth.

Xerostomia is also known as dry mouth.

Xerostomia means منہ میں لعاب دہن کا نہ ہونا یا کم ہونا

Explanation

Alzheimer's disease is a disease that affects the brain and nervous system.

It happens when nerve cells in the brain die.

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