A high vaccination rate against a given disease keeps the probability of spreading the disease in public low. Meanwhile, community or herd immunity which would be beneficial to specific people is built. Despite great improvements making vaccines safer and more available use in recent decades, they indeed could not cover a group of vulnerable people completely. Those include infants who are too young to be vaccinated, those who are unable to receive any certain vaccines (i.e. chronic illnesses, cancers, HIV patients), and those who unknowingly have a vaccine failure as they do not have an appropriate immune response to it. Due to successful herd immunity, this vulnerable group can be protected from vaccine-preventable disease by reducing the likelihood of an outbreak that could expose them to the disease. If the number of people refusing vaccination keeps increasing, the effective of herd immunity would be ruined. According to the title “What is Herd Immunity”, Emily Willingham and Laura Helft emphasize the importance of vaccination. The initial use of chickenpox vaccine in 1995 led to a decrease in fatal cases by 97%. It is remarkable that “although this vaccine is not administered to infants, no infant died from chickenpox in the U.S between 2004 and
A high vaccination rate against a given disease keeps the probability of spreading the disease in public low. Meanwhile, community or herd immunity which would be beneficial to specific people is built. Despite great improvements making vaccines safer and more available use in recent decades, they indeed could not cover a group of vulnerable people completely. Those include infants who are too young to be vaccinated, those who are unable to receive any certain vaccines (i.e. chronic illnesses, cancers, HIV patients), and those who unknowingly have a vaccine failure as they do not have an appropriate immune response to it. Due to successful herd immunity, this vulnerable group can be protected from vaccine-preventable disease by reducing the likelihood of an outbreak that could expose them to the disease. If the number of people refusing vaccination keeps increasing, the effective of herd immunity would be ruined. According to the title “What is Herd Immunity”, Emily Willingham and Laura Helft emphasize the importance of vaccination. The initial use of chickenpox vaccine in 1995 led to a decrease in fatal cases by 97%. It is remarkable that “although this vaccine is not administered to infants, no infant died from chickenpox in the U.S between 2004 and