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The discovery of viruses

The shapes of different viruses

Structure of a virus

Hepatitis B virus

Viruses inside the host cell

Multiplication of viruses inside the host cell

Life cycle of a virus

The multiplication of viruses in the host cell

Influenza virus – model

Influenza type A virus

Influenza – a dangerous disease

H5N1 bird flu virus

The greatest flu epidemic

Bird flu

Childhood diseases





Prevention and treatment of childhood diseases

Incidence of polio around the world

Poliovirus – model


Carriers of poliomyelitis

The iron lung – the fore runner of the respirator

Symptoms of viral hepatitis

Hepatitis A and E

Hepatitis B, C and D

Comparison of the types of viral hepatitis

Virus A

Virus B

Virus C

Virus D

Virus E