Tag: diseases and immunity

Smallpox vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught cowpox did not later catch smallpox by showing that inoculated cowpox protected against inoculated smallpox.

Waksman is known for his discovery of streptomycin, the first antibiotic effective against tuberculosis.

Many people could still be at risk of getting a particular disease example polio. This includes those people who have never had the vaccine, those who didn't receive all doses of the vaccine, or those traveling to areas of the world where polio is still prevalent. Therefore, (d) is the correct answer.

Vaccines stimulate the body's own immune system to protect the person against subsequent infection or disease. As vaccines contains heat killed microbes which are able to stimulate immune system. Therefore, (d) is the correct answer.

• Vaccines are the suspension of weakened or killed microorganism which generates the immune response. 
• It provides active acquired immunity to a particular disease. It is important for both, adults and children, as they can protect us from the many diseases.
  
  

Vaccines are suspensions of killed or weakened microbes or products or derivatives of micro organisms. A vaccine produces immunity to a disease by stimulating the production of antibodies. So, it is always useful.

These days vaccines are made on a large scale from micro organism to protect humans, animals and plants from several diseases.

• Vaccines are the suspension of the live or killed microorganism which mainly activates the immune response. 
• Louis Pasteur produced the first vaccine for rabies by growing the virus in rabbits. 
• Pasteur was the first scientist to artificially attenuate viruses for use in vaccines. 
• He created several veterinary vaccines before his development of the rabies vaccine in 1885 for use in humans. 
• So, the correct answer is option C.