COMBATING INFLUENZA - SOUND

The video discusses the threat of influenza and the collaborative efforts in Victoria to develop a vaccine using eggs. It details the process of growing the virus in eggs, testing the vaccine's strength and purity, and conducting an immunization experiment with army volunteers to evoke resistance against influenza.

What is the primary method used by scientists in Victoria to develop an influenza vaccine?

• Using live animals

• Growing the virus in eggs

• Synthesizing the virus in a lab

• Cultivating the virus in plants

What happens to the virus after two days in an incubator?

• It changes color

• It becomes inactive

• It multiplies a million times

• It becomes visible under a microscope

How do scientists check if the influenza virus is present in the vaccine?

• By checking the smell

• By observing the color change

• By measuring the temperature

• By looking for clumped red blood cells

What is the main goal of the immunization experiment with army volunteers?

• To observe the virus's natural progression

• To give a strong attack of influenza

• To test the vaccine's side effects

• To evoke resistance against the real virus

What is the principle behind using a weakened form of the virus in vaccines?

• To make the virus more potent

• To eliminate the virus completely

• To build immunity against the actual virus

• To create a mild infection