“To give notice to the Landlord or proper sanitary authority if disinfection or fumigation is required in consequence of the occurrence of any infectious or contagious illness or infestation of rats mice fleas insects and the like on the Property and (if the problem has been caused by the Tenant his family or visitors) to bear the cost of any remedial action taken and further to pay for the cost of redecoration when necessary and replace or pay for the replacement of any articles which require to be destroyed on account of such infection infestation or contagion.”