https://theconversation.com/a-few-superspreaders-transmit-the-majority-of-coronavirus-cases-139950
An interesting article about Superspreaders-
Whether or not a person is a superspreader or not will depend on some combination of the pathogen, the patient's biology, and their environmental behavior. Some infected individuals might shed more virus into the environment than others if their immune
system has trouble subduing the invader. Additionally, asymptomatic individuals, up to
50% of all those who get Covid 19 will continue their normal activities, inadvertently infecting more people; Even people who ultimately show symptoms are capable of transmitting the virus during a pre-symptomatic diagnosis.
A person'as behavior, travel patterns, and degree of contact with others can also
contribute to superspreading. An infected shopkeeper mightcome in contact with a large number of people and goods each day: an international business traveler may crisscross the globe in a short period time: a sick health care worker might come in contact with large numbers of people who are especially susceptible, given the
presenceof other underlying illnesess. Public protests, where it is challenging to
keep social distance and people might be raising their voices or coughing from
tear gas-are conducive to superspreading.
The article states that a FEW SUPERSPREADERS TRANSMIT THE MAJORITY
OF COVID CASES
The article states that some sick people might not spread the virus much further, but some people infected with Covid are what epidemiologists call "superspreaders"-
Researchers have estimated that only 20% of all those infected with Covid
were responsible for 80% of all local transmission. Importantly, they also
showed that these transmission events were associated with people who
had more social contacts-beyond just family members- highlighting the
need to rapidly isolate people as soon as they test positive or show symptoms.
Typhoid Mary is an example of a superspreader. During the last two decades superspreaders have started a number of measles outbreaks in the United States.
Sick, unvaccinated people visited densely crowded places like schools, hospitals,
airplanes and theme parks, where they infected many others. Superspreaders
have also played a key role in the outbreaks of other coronaviruses, including SARS
in 2003 and MERS in 2015. For both SARS and MERS, superspreading mainly
occurred in hospitals, with scores of people being infected at a time.
The good news is that the right control practices specific to how pathogens are
transmitted-- hand washing, masks, quarantine, vaccination, reducing social
contacts and so on, can slow the transmission rate and halt a pandemic.