Table 6.

Main citation network groups from the sub-cluster of Group 2.

Sub-Cluster	1	2	3	4
No. of publications	509	399	223	176
No. of citation links	1028	830	302	270
Most cited publication	van Doremalen et al. [28]	Lauer et al. [55]	Remuzzi et al. [40]	Lai et al. [33]
Main Keywords	Acute respiratory syndrome, infections, chloroquine	Public health, epidemic, quarantine	Management, personal protective equipment, safety	Epidemiology, sars-cov-2, syndrome
Topic of discussion	Evaluate the presence of SARS-CoV-2 on different surfaces.	Evaluate the incubation period of COVID-19 and its effects on public health.	Evaluate the efficiency of the contention methods for reducing COVID-19 outbreaks.	COVID-19 epidemiology
Conclusion	The presence of SARS-CoV-2 on different surfaces is very similar to that of SARS-CoV-1. The epidemiological differences between these viruses may be due to the high viral loads in the respiratory tract and the possibility that SARS-CoV-2-infected people could transmit the virus while being asymptomatic.	The mean period of incubation is of 5 days, and in most of the people, the symptoms appear within 11 days. However, these numbers vary between mild cases and severe cases.	Containment methods, such as social distancing or the use of masks, have proven to be effective in limiting virus transmission. Therefore, the general public must be aware of the recommendations regarding COVID-19 contention.	Public health authorities must keep tracking the situation to obtain new information about the virus and its outbreaks in order to estimate the risk of further outbreaks with greater precision.