The information of how safe we need to maintain to avoid COVID-19 transmission needs to be studied in detail.
Eventhough virus RNA was found on surfaces, none were thought to be able to transmit disease.
The larger droplets traveled farther compared to the smaller droplets. This was due to the increase drag on the smaller droplets.
“Breathing out, singing, coughitng and sneezing generated warm moisr high momentum dropplets. These travel faster that the typical backgrund air ventilation flow.”
Risk of SARS-CoV-2 transmission from asymptomatic people in different settings and for different occupation times, venting, and crowding levels (ignoring variation in susceptibility and viral shedding rates). Face covering refers to those for the general population and not high grade respirators. The grades are indicative of qualitative relative risk and do not represent a quantitative measure. Other factors not presented in these tables may also need to be taken into account when considering transmission risk, including viral load of an infected person and people’s susceptibility to infection. Coughing or sneezing, even if these are due to irritation or allergies while asymptomatic, would exacerbate risk of exposure across an indoor space, regardless of ventilation
The oxygen dissociation curve is the model how the exygen delivery takes place at cellular level. This is dependent on a number of varaibles. These included temp, Ph, 2,3 DPG and CO2.
Subject-specific pulse oxygen saturation response has been investigated. This allows for specific conditons to be dtudied. Therfore, better oxygen delivery can be tailored for specific conditions.
Zinc ions are involved in many different cellular processes and have proven crucial for the proper folding and activity of various cellular enzymes and transcription factors.
Increasing the intracellular Zn2+ concentration with zinc-ionophores like pyrithione (PT) can efficiently impair the replication of a variety of RNA viruses, including poliovirus and influenza virus. For some viruses this effect has been attributed to interference with viral polyprotein processing.zinc_Coronavirus
Isolation of cases and contact tracing is used to control outbreaks of infectious diseases. This has been used for COVID-19. Whether this strategy will achieve control depends on characteristics of both the pathogen and the response.Feasibility of controlling COVID-19 outbreaks by isolation of cases and contacts.
