How does travel contribute to the emergence of infectious diseases?
Many factors contribute to the emergence of infectious diseases. Those frequently identified include microbial adaptation and change, human demographics and behavior, environmental changes, technology and economic development, breakdown in public health measures and surveillance, and international travel and commerce (1 – 4).
What are the factors that lead to disease emergence?
Specific factors precipitating disease emergence can be identified in virtually all cases. These include ecological, environmental, or demographic factors that place people at increased contact with a previously unfamiliar microbe or its natural host or promote dissemination.
What are the factors that influence the spread of HIV?
Those who do not know their status continue to get involved in high-risk behaviors and activities. According to HIV/AIDS specialists, people who are infected with the disease and are not using ARVs are spreading the virus more easily compared to those who are using them. 7. Cultural Factors
How did the spread of disease affect the New World?
In fact, some historians have suggested that as many as 90% of people in the New World died from the spread of European diseases. Since the indigenous people of the New World had never been exposed to these diseases before, they lacked the immunity and were susceptible to the deadly effects of the disease.
How does population growth lead to spread of infectious diseases?
For example, population movement from rural areas to cities can spread a once-localized infection. The strain on infrastructure in the overcrowded and rapidly growing cities may disrupt or slow public health measures, perhaps allowing establishment of the newly introduced infection.
How are researchers studying the spread of disease?
When researchers study the spread of disease, they look at a variety of different factors to determine the cause, including how many people in a population are vulnerable to disease and how many people a single person exposes. For a long time, they had concluded that super spreaders are anomalies. That turned out to be a false assumption, however.
Specific factors precipitating disease emergence can be identified in virtually all cases. These include ecological, environmental, or demographic factors that place people at increased contact with a previously unfamiliar microbe or its natural host or promote dissemination.
Those who do not know their status continue to get involved in high-risk behaviors and activities. According to HIV/AIDS specialists, people who are infected with the disease and are not using ARVs are spreading the virus more easily compared to those who are using them. 7. Cultural Factors