The assumption that everybody is susceptible to coronavirus may not be true 18:44 why not everybody in the same household is getting COVID-19 (after one member gets infected) 18:45 they may have developed some form of resistance or immunity and are not susceptible to the disease 18:45 transmission to be generally between 10 to 15 per cent, 18:49 Some studies have gone into the details of transmission between husband and wife or vice versa, which is shown in the range of 45 to 65 per cent 18:50 Even in cases where people share beds, transmission is not 100 per cent,” he said 18:51 Different people have different immunity to the virus 18:51 Within a household, we do not follow social distancing rules or use masks. 18:52 Between the appearance of the symptom and diagnosis, there is a gap of three to five days, which means all the family members are exposed to the virus. 18:52 half of the population is not susceptible to the virus, as per a theory of “immunological black hole” propounded by Karl Friston, a neuro-scientist at the University College of London. 18:53 Friston has modelled his theory which shows 50 per cent of the people in Europe do not seem to be susceptible to the virus 18:54 the infection must be so mild that they could not pass it to others despite being infected. 18:55 there is a small percentage which can get infected and can also develop immunity hakkında daha fazla bilgi