Toxic mould
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Common allergic reactions The common cold is due to infection by rhinoviruses (through close personal contact and/or nasal mucus on hands). Its spread is facilitated by overcrowding and poor ventilation. Individuals suffer 2 to 3 colds per year on average. The incubation period is from 12 hours to an upper limit...Explore the subscription options here to get full access to isurv, including downloads.
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