Epidemiology can be defined as a branch of medicine that is concerned with the effects and causes of diseases. A person who engages in the study of epidemiology is known as an epidemiologist. It is a vast subject and includes concepts from biology, mathematics, geography, and statistics. Epidemiologists collect information through methods such as interviewing, sampling, conducting research, surveying, etc. The major branches of epidemiology discussed in Epidemiology Assignment Help are given below: –

• Molecular Epidemiology- This branch of epidemiology is concerned with the application of molecular biology to study various epidemiologic problems. Various molecular biology techniques such as DNA cloning, nucleic acid analysis, polymerase chain reaction, etc. are applied in this study. It is beneficial in the study of diseases caused by the viral agents.
• Disaster Epidemiology- It is a branch of epidemiology that studies the factors that cause disasters. It is also concerned with the study to find mechanisms in order to reduce the negative health effects of that disaster. A disaster is of two types- natural and man-made. A natural disaster is caused by nature- earthquakes, hurricanes, floods, etc. Man-made disaster is caused by the loopholes, chemical and oil spills, etc. Its main objective is to generate information so that the disaster relief workers could be aware of the situation. It uses techniques such as the identification of potential diseases, the establishment of surveillance systems, etc.
• Travel Epidemiology- It is a specific branch of epidemiology that is concerned with the health risks associated with traveling. One of the main purposes of travel epidemiology is to provide necessary health-related information so that the travelers can plan a safe journey. For example, in high altitude regions health issues like snow blindness, heat exhaustion, dehydration, frostbite, etc. is possible.

Merits and Limitations of Macroeconomics:

The merits of macroeconomics mentioned in Macroeconomics Assignment Help are as follows: –

• With the help of the macro approach of economics, many monetary problems like unemployment, inflation, and deflation, etc. can be applied. These problems are also controlled by following an appropriate monetary policy.
• Macroeconomics is applied to the special areas where the micro approach is not applicable. Special areas such as national income, international trade, national investment, etc. use the macro approach.
• Macroeconomics provides an insight into our economic policies. It is useful to study and understand the problems of a developing economy like scarcity of goods, unemployment, hyperinflation, low output, overpopulation, etc.

The dynamic aspects of the economy such as aggregate supply, employment, aggregate demand, national income, etc. change from time to time. Thus, the macro approach helps us to study and understand all dynamic aspects of the economy.

Along with merits, macroeconomics has certain limitations. Some of its limitations are given below: –

• It studies the economy as a whole and ignores the action of individual producers, individual suppliers, individual consumers, etc.
• Statistical and conceptual complexities are involved in the measurement of macroeconomics concepts.
• One of the major drawbacks of the macro approach is that it regards the overall structure as homogenous without caring about their internal composition.

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