Mumps and Hockey
Mumps and hockey go together like . . . a stick and a spit?
In late 2014, the US National Hockey League (NHL) faced a mystery: Why had 18 (and counting) players come down with the mumps in the same 8-week period between October 17 and December 17? The NHL has had a history of difficulties with stopping the spread of MRSA among players—but adding mumps into the mix caught everyone involved by surprise. The surprise was big enough, in fact, to lead to two lawsuits (at the time of this writing) against Merck, the pharmaceutical company that won the right to be the sole provider of the vaccine in the United States. The company is being accused of hiding or misrepresenting facts about how well the MMR (measles, mumps, and rubella) vaccine offers protection against mumps.
The outbreak in the NHL led to proactive moves in other sports organizations—in particular, the National Football League (NFL) and the National Basketball Association (NBA), especially in cities when NHL and NBA clubs were sharing the same arena or, in the case of some teams (e.g., the New York Knicks and New York Rangers), even the same practice facility.
Mumps is a viral infection spread mainly through saliva (by coughing, sneezing—or spitting, something that occurs quite a lot in hockey!). After the vaccine was developed in the 1960s, mumps became a fairly rare phenomenon (fewer than 1000 cases a year). But the past decade has seen a resurgence, partly because many patients fail to get boosters on time, while at the same time immunity tends to fail more than 10% of the time, even among those patients who do get all their boosters on time. Finally, patients are contagious before symptoms show up.
So, besides some lawsuits, what has been the upshot within multiple sports leagues?
Although cases are still occurring at the time of this writing, sports leagues have called on the Centers for Disease Control and Prevention (CDC) and other medical experts to guide them in establishing standardized preventive measures (including the CDC’s revisiting the standards for booster shots) and educational strategies for both players and staff on how communicable diseases are spread.
Sources
Howard J. Mumps fosters cautious approach. ESPN NHL. December 23, 2014. http://espn(dot)go(dot)com/nhl/story/_/id/12065767/nhl-mumps-outbreak-other-leagues-high-alert. Accessed January 1, 2015.
Mohamadi A. How did the NFL have a mumps outbreak? SBNation. December 5, 2014. http://www(dot)sbnation(dot)com/nhl/2014/12/5/7341719/nhl-mumps-out-breakout. Accessed January 1, 2015.
1. How does the agent–host–environment triangle play out here? How would you describe mumps transmission?
2. Although mumps spreads dramatically—and some said “mysteriously”—through the NHL, not everyone was infected. What are three factors that determine who is infected and who is not?
3. Given what this story reveals about the nature of mumps’ contagious state, were players capable of passing on the infection during the incubation period, the communicable period, or both?
Mumps and Hockey
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Mumps and Hockey
How does the agent–host–environment triangle play out here? How would you describe mumps transmission?
The emergence of mumps among hockey players in the United States illustrates how the agent-host-environment triangle facilitates disease spread. In this context, the mumps virus infects vulnerable hosts, and its pathogenicity leads to the development of the disease (Van Seventer & Hochberg, 2017). Host factors also become critical because players’ immunity, such as acquired through vaccination and natural ones, determines their susceptibility. The delays highlighted in receiving boosters also underscore the increased risks. In the same context, hockey presents factors for proximity between players, enabling contact to transmit the virus from an infected person to a vulnerable one through sweat and saliva when players sneeze, cough, or spit. Thus, the virus easily infects individuals with compromised immunity in such scenarios.
Although mumps spread dramatically—and some said “mysteriously”—through the NHL, not everyone was infected. What are three factors that determine who is infected and who is not?
Several factors determine whether an individual becomes infected or not. One of these is exposure to the agent in the NHL. Van Seventer and Hochberg (2017) highlight exposure as a significant determinant for ensuring the disease-causing agent finds its way to a host. Players increasingly exposed to infected individuals have a higher likelihood of infection. The second one is the ...