History of Disease Control

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Who introduced the concept that specific infectious disease is caused by a specific microorganism?

Robert Koch

Louis Pasteur (correct)

Ignaz Semmelweis

Alexander Fleming

What was the significance of Pasteur's swan-necked flask experiment in the defeat of spontaneous generation?

Showed that air could not enter the flask

Led to the rejection of the theory of spontaneous generation (correct)

Prevented microorganisms from entering the flask

Demonstrated the process of sterilization

Which scientist studied anthrax, used mice in experiments, and developed a set of postulates to establish a causative relationship between microorganisms and diseases?

Alexander Fleming

Ignaz Semmelweis

Robert Koch (correct)

Louis Pasteur

What happened when Robert Koch transferred blood from a diseased mouse into a healthy mouse?

Both mice became ill Signup and view all the answers

What was done to the liquid in Pasteur's flask to ensure that no microorganisms grew?

Sterilized by heating Signup and view all the answers

Which scientist is known for his contributions to handwashing in healthcare and fighting against puerperal fever?

Ignaz Semmelweis Signup and view all the answers

Who demonstrated that wine diseases are caused by bacteria that can change alcohol into acetic acid?

Louis Pasteur Signup and view all the answers

What is the purpose of pasteurization technique?

To kill microorganisms in food and beverages Signup and view all the answers

Which temperature is typically used in the classic pasteurization treatment of milk?

63°C Signup and view all the answers

What is the purpose of vaccination?

To stimulate the immune system to develop immunity against a pathogen Signup and view all the answers

Which microorganism did Louis Pasteur develop a vaccine for?

Chicken cholera Signup and view all the answers

Who is credited with the development of the Germ Theory of Disease?

Louis Pasteur Signup and view all the answers

What did the germ theory of disease provide that was previously lacking in understanding the cause of human diseases?

Definitive proof of the role of microorganisms Signup and view all the answers

What did Ignaz Semmelweis believe would reduce cases of puerperal fever in hospitals?

Handwashing by hospital staff Signup and view all the answers

Which Austrian hospital was Ignaz Semmelweis employed in when he observed the high incidence of maternal mortality?

Vienna General Hospital Signup and view all the answers

What did Ignaz Semmelweis propose to drastically reduce the incidence of maternal mortality in obstetrical clinics?

Handwashing standards Signup and view all the answers

What was the impact on the incidence of maternal mortality after handwashing standards were introduced?

Declined from up to 30% to 1% Signup and view all the answers

How did discoveries in sanitation provide indirect evidence for the role of microorganisms in causing human diseases?

By demonstrating the importance of hygiene practices Signup and view all the answers