Epidemiological aspects of influenza A related to climatic conditions during and after a pandemic period in the city of Salvador, northeastern Brazil oleh Rosangela de Castro Silva, Marilda Agudo Mendonça Siqueira, Eduardo Martins Netto, Jacione Silva Bastos, Cristiana Maria Nascimento-Carvalho, Ana Luisa Vilas-Boas, Maiara Lana Bouzas, Fernando do Couto Motta, Carlos Brites