Dont Count Your Chickens Before They Hatch Essay Topics

For epidemics over recent years, the U.S. and Britain have worked together to make vaccines available to as many people as possible, as rapidly as possible. Vaccines work by tricking the immune system into thinking it's been infected by a given flu virus, so that the body creates antibodies. While the amount of virus included in the vaccine shouldn't be enough to make someone sick, the body has now created an arsenal of antibodies. The instructions for making these antibodies remain in the body forever, so that during a secondary infection the antibodies can be quickly marshaled for action. During a true infection, the body should be able to destroy the virus before it can cause illness.

The H1N1 virus has left people around the world worried about a vaccine. Although this past winter's flu vaccine contained a strain of human H1N1, a virus designed specifically to target H1N1 would be more effective. The W.H.O. and U.S. Centers for Disease Control & Prevention aren't ready to commit publicly to a particular strategy for vaccine production. They do admit the need to make a decision soon, since researchers would require 4-6 months to engineer an effective H1N1 vaccine.1 While the first strain could be available in 3-4 weeks, it would take months to amplify this strain to serve the world's population. Fortunately, the machinery is in place -- 300 million doses of seasonal flu vaccine are produced globally each year.

 

Notably, scientists are already manufacturing the seasonal flu vaccine for the northern hemisphere.2 Since the H1N1 virus will require a separate vaccine, some of the resources for making vaccines will be re-assigned. Realistically, a large change in the division of resources would limit the amount of regular seasonal flu vaccine available to the world's populations. The decisions made by the powers that be will depend on what happens in the next 6 months and in the southern hemisphere. Since the seasons are different across the hemispheres, half the world is just emerging from winter and the flu season, while the other half is only now saying goodbye to summer. If the current trend continues and the virus causes only mild disease, we wouldn't need to ship vaccines in a systematic, all-inclusive fashion.

 

As in so much of science, the steps to create a vaccine are painstaking. Scientists use a tried and true technique. First, the virus has to be germinated in a fertilized chicken egg.

Scientists in the lab inject small amounts of virus and allow the eggs to incubate over the weekend. By Monday, they have enough virus to amplify. Two techniques work. One involves reverse genetics: scientists take the H and the N surface proteins from H1N1 virus and mix them with a laboratory virus known as PR8, as a sort of backbone.
This creates a hybrid virus which can be used for the vaccine. The other technique requires that scientists inject H1N1 and PR8 viruses into eggs and sit back while natural genetic re-shuffling proceeds. This hands-off mix and match approach also creates a viable hybrid strain.

 

One way to boost the power of a limited number of vaccines would be something that stimulates the immune system and makes the vaccine more effective, called an adjuvant. Some examples are aluminum phosphate and aluminum hydroxide.

 

Once the vaccine is made and amplified, the first to benefit will likely be patients in need, front-line healthcare workers, and those who render essential services. In the meantime, soap and water are remarkable effective.

 

1A vaccine for swine flu will depend on what happens next. News-medical.net 6 May 2009.

2Walsh, Fergus. How to make a swine flu vaccine. BBC News. 1 May 2009.

Do not count your chickens before they are hatched.




Do not count your chickens before they are hatched. :




If we have a basketful of eggs, there is no guarantee that all the eggs will hatch into chickens. Similarly planning is important in life. But we should not pin all our hopes and plan too much for the future, expecting certain things to happen. Because in life, events or incidents do not always happen the way we want them to do. It is necessary to plan but we must also be prepared to expect unexpected contingencies. In this proverb, our plans are compared to chickens that come out of eggs.


It is better to plan things but one must also be prepared for uncertain eventualities to avoid disappointments and frustration.


Once there was a farmer Subramanian who had cultivated groundnuts on his farmland and got a good yield. He sold the groundnuts and made a huge sum of money. He wanted to perform the wedding of his daughter in a grand manner but realized that he was running short by a small amount.


Subramanian decided that he would cultivate groundnuts again the next season so that he would get a huge sum of money all over again.


Other farmers warned him not to do so since it was time for the monsoons and the meteorological department had predicted heavy rains that year. They told him that paddy would be the best crop for cultivation and if he wanted he could cultivate groundnuts over a small area.


But Subramanian refused to listen to them and went ahead and cultivated groundnuts over his entire farmland. He was sure that he would get a good yield. He spent all the extra money that he had to conduct his daughter's wedding. Just as the crops were getting ready for harvesting, heavy rains lashed the village and all the crops got washed away due to heavy floods. The rain resulted in making heavy lose to all the farmers who had cultivated groundnuts in their lands.


Subramanian was a very sad man for he not only lost his crops but he also wasted all his money in lavish expenditure which was unnecessary. He realized his folly in being over confident and not listening to his friends' advice which resulted in him losing all his money. Thereafter it took many years for Subramanian to settle all his loan amount which he borrowed to marry off his daughter.


Similar Proverbs :


Don't put all your eggs in one basket.
Don’t bite more than you can chew.
Cut your coat according to your cloth.


Do not count your chickens before they are hatched. :






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