A secondary school revision resource for ocr gcse 21st century science about disease, antibiotics and drug testing - with higher tier but this meant that as less and less children were vaccinated the diseases began to spread more easily and the number of cases began to increase therefore, a decision originally. Herd immunity is a form of immunity that occurs when the vaccination of a significant portion of a population (or herd) provides a measure of protection for individuals who have not developed however, when immunisation rates fall, herd immunity can break down leading to an increase in the number of new cases. (1 mark) in 1998 a paper appeared in a medical journal linking the mmr vaccine to autism there were two main objections to this paper 1 it was based on a study of 12 children, 8 of which showed the symptoms of autism 2 the scientist who wrote it was being paid by the lawyers working for the people who were seeking. In april 2013, there were 630 cases of measles in children aged 4 and over in a small area of the uk of these cases, 504 children had not been vaccinated against mmr at all and only a few had been given a second vaccination 4 (b) (i) calculate the percentage of the children who caught measles in april. Another one wrote: what drunk 15 year olds did aqa pay to write the b_____t on that biology gcse exam 15-year-olds getting drunk, rats being fed alcohol and a horses foot that looked like a giant sch and questioned about independent companies which i swear is a business studies subject.
They decided not to risk letting their child have the vaccine and just hoped they would not catch measles, mumps or rubella but this meant that, as fewer and fewer children were vaccinated, the three diseases began to spread more easily and the number of cases began to increase more recent studies by the world health. Gcse science (edexcel) gcse science a famous case of fraud was hwang woo suk who published two papers on stem cells in the with mmr consequent studies have showed no links between mmr and autism and in 2004 10 of the original 13 authors issued a retraction of the papers interpretations this was to. This may be to supplement or improve on qualifications gained in school, as a foundation to further studies or as a response to a specific need in order to progress in the workplace successful completion may also count as a science qualification for primary teaching or other entry requirements note that in most cases,. Science debate kit: vaccinations facilitation tips ensure pupils know there is no right or wrong answer be observant of those who want to speak online survey background notes current policy in the uk and ireland, no vaccines are required for children to attend school in other countries (eg usa.
8 gcse science b unit 3 specimen higher tier v10 do not write outside the box 5 scientists have been developing vaccines to protect children against diseases for many years 5 (a) graph a shows the number of cases of measles in the uk between 1998 and 2003 graph b shows the percentage of children given the. Read a brief biography about edward jenner, the pioneer of the smallpox vaccination and the father of immunology.
2 wwwbangoracuk/gcserevision harvey's approach prior to harvey's discovery, it was thought that the blood was formed in the liver, and was used up as it went around the body harvey used a scientific approach, which included: • dissection of humans and other animals • a detailed study of the structure of the heart. Thislesson has two really important ideas one is that correlation is not the same as causation agreement between two sets of data doesn't prove that one has caused the other the other is that small scale studies can be misleading it uses the well-known example of the mmr vaccination scare and refers to two studies, the. Unfortunately this is not the same for all countries and cases of these diseases continue to be seen worldwide, including europe similarly immunisations for meningitis c (menc) have drastically reduced the number of people contracting this serious infection therefore it is important that we continue to immunise our.
Case study with questions on dr john wilson and his claim that the whooping cough vaccine was dangerous can be used for aqa b1 - keeping healthy - how we deal with disease. Were frightened because they did not understand that vaccination was based on scientific observation and therefore could be trusted level 1 basic analysis of source answers may show understanding/support for the source, but the case is made by assertion/basic inference candidates identify basic features which are.