Natural Immunity vs Vaccine Immunity which is better.
                     NATURAL IMMUNITY VS VACCINE IMMUNITY
 WHICH IS BETTER?
INTRODUCTION
• Sen. Rand Paul tweeted a controversial analogy 
on the back of last month's reports of stunning 
findings from Pfizer's and Moderna's 
groundbreaking COVID-19 vaccines. 
• The new vaccines, were 90 per cent and 94.5 
per cent successful. 
• But COVID-19 "naturally acquired" was even 
higher, he said at 99.9982 perent. 
Source: indianexpress.com
LOCKDOWN IMPACT
• This year the senator was diagnosed with the 
disease and claimed that surviving with COVID-
19 provides better protection and faces less 
risk than being vaccinated.
Source: www.aa.com.tr
UNCERTAIN
• Specialists admit that it's impossible to 
determine who can survive an illness 
unscathed. 
• With all the unknowns, such as the hospital 
capability of an area or the power of the 
immune response of an individual, choosing 
the disease over the vaccine is a very poor 
decision. 
Source: businessstandard.com
EFFECTIVENESS
• A vaccine's primary value is that it's 
predictable and secure. 
• To produce an effective immune response, it 
has been optimally tailored.
Source: forbesindia.com
WHAT IS THE ISSUE?
• What do we know about how the immunity 
from a prior infection compares with the 
protection given by the new vaccines?
• And what if you have COVID already-is it 
possible to vaccinate?
Source: theeconomictimes.com
Which produces a stronger immune 
response: a natural immunity or a vaccine?
• COVID-19 vaccines have avoided disease 
predictably, and they are a much better bet, 
experts said. 
• For certain diseases, vaccines, such as 
pneumococcal bacteria, cause greater 
immunity than normal infection. 
Source: indianexpress.com
Immune Response
• Early data indicates that vaccines containing 
COVID-19 can fall into this group. 
• Volunteers who got the Moderna injection had 
more antibodies in their blood than individuals 
who had been ill with COVID-19, one predictor 
of immune response.
Source: www.cidrap.umn.edu
Natural Immune
• However a normal infection is more effective 
than a vaccine in some situations. 
• Catching mumps, for instance, induces lifetime 
immunity, which can induce sterility in men, 
but certain people who have received one or 
two doses of the vaccine also get the disease.
Source: economictimes.indiatimes.com
How Natural Immunity is Strong?
• Fortunately, natural coronavirus immunity is 
very strong. 
• At least some antibodies and immune cells 
that can ward off infection are developed by 
the vast majority of people infected. 
• And the data so far shows that this defence can 
last for years, avoiding, if not re-infection, 
severe illness. 
Source: health.clevelandclinic.org
Second Infection
• The immune defence that can prevent a 
second infection may wane within a few 
months in people who are only mildly ill. 
• "Bill Hanage, an epidemiologist at the Harvard 
T.H. Chan School of Public Health, said Those 
individuals will benefit more from the vaccine 
than others would. 
Source: www.irishtimes.com