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	1.	Antibodies to influenza A/swine-like viruses (Hsw1N1) in human sera: antigenic stimulation and changes in antibody status. [electronic resource] by Pyhälä, R Producer: 19770129 In: Acta pathologica et microbiologica Scandinavica. Section B, Microbiology vol. 84B Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	[Amantadine, rimantadine and influenza]. [electronic resource] by Pyhälä, R Producer: 19950608 In: Duodecim; laaketieteellinen aikakauskirja vol. 109 Availability: No items available. Save to lists Add to cart (remove)
	3.	[Moscow influenza--an unexpected guest]. [electronic resource] by Pyhälä, R Producer: 19791227 In: Duodecim; laaketieteellinen aikakauskirja vol. 95 Availability: No items available. Save to lists Add to cart (remove)
	4.	NDV-O agglutinins and heteroagglutinins in sera of blood donors. [electronic resource] by Pyhälä, R Producer: 19770129 In: Medical biology vol. 54 Availability: No items available. Save to lists Add to cart (remove)
	5.	Antibody status to influenza A/Singapore/1/57(H2N2) in Finland during a period of outbreaks caused by H3N2 and H1N1 subtype viruses. [electronic resource] by Pyhälä, R Producer: 19860106 In: The Journal of hygiene vol. 95 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	[The offspring of Influenza A (H3N2) in Finland--30 years of catching and following]. [electronic resource] by Pyhälä, R Producer: 20020712 In: Duodecim; laaketieteellinen aikakauskirja vol. 116 Availability: No items available. Save to lists Add to cart (remove)
	7.	[Can "Spanish disease" repeat itself?]. [electronic resource] by Pyhälä, R Producer: 19950511 In: Duodecim; laaketieteellinen aikakauskirja vol. 108 Availability: No items available. Save to lists Add to cart (remove)
	8.	[The threat of an influenza pandemic]. [electronic resource] by Pyhälä, R Producer: 19970328 In: Duodecim; laaketieteellinen aikakauskirja vol. 111 Availability: No items available. Save to lists Add to cart (remove)
	9.	Protection by a polyvalent influenza vaccine and persistence of homologous and heterologous HI antibodies during a period of two epidemic seasons. [electronic resource] by Pyhälä, R Producer: 19800514 In: The Journal of hygiene vol. 84 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	10.	[Influenza pandemic was probably avoided with effort and luck--thus far]. [electronic resource] by Pyhälä, R Producer: 20011204 In: Duodecim; laaketieteellinen aikakauskirja vol. 114 Availability: No items available. Save to lists Add to cart (remove)
	11.	Serum HI antibody and protection against influenza: a follow-up survey at community level of three epidemics caused by different H3N2-variants. [electronic resource] by Pyhälä, R Aho, K Producer: 19751211 In: International journal of epidemiology vol. 4 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	12.	Antigenic analysis of intraepidemic variants of influenza A (H3N2) viruses by hyperimmune rat antisera. [electronic resource] by Pyhälä, R Pyhälä, L Producer: 19870701 In: Journal of virological methods vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	13.	Agglutinins against human erythrocytes modified by Newcastle disease virus in Mycoplasma pneumoniae infections. [electronic resource] by Aho, K Pyhälä, R Producer: 19760219 In: Clinical and experimental immunology vol. 17 Availability: No items available. Save to lists Add to cart (remove)
	14.	The value of complement fixation and haemagglutination inhibition tests in the diagnosis of influenza A. [electronic resource] by Pyhälä, R Kleemola, M Producer: 19761002 In: Acta virologica vol. 20 Availability: No items available. Save to lists Add to cart (remove)
	15.	Seroepidemiology of H1N1 influenza: the infection and re-infection rate in winter 1978-79. [electronic resource] by Pyhälä, R Aho, K Producer: 19810413 In: The Journal of hygiene vol. 86 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	16.	Influenza A (H3N2) in Finland: changes of antibody status during 1968-72. [electronic resource] by Pyhälä, R Kleemola, M Producer: 19740424 In: Scandinavian journal of infectious diseases vol. 5 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	17.	[Epidemiology of influenza]. [electronic resource] by Aho, K Pyhälä, R Producer: 19751021 In: Duodecim; laaketieteellinen aikakauskirja vol. 91 Availability: No items available. Save to lists Add to cart (remove)
	18.	Studies on the specificity of agglutinins against human erythrocytes modified by Newcastle disease virus. [electronic resource] by Pyhälä, R Aho, K Producer: 19760318 In: Clinical and experimental immunology vol. 21 Availability: No items available. Save to lists Add to cart (remove)
	19.	Influenza A(H1N1) viruses of the 1977/78 outbreak: isolation and haemagglutination properties. [electronic resource] by Pyhälä, R Visakorpi, R Producer: 19790428 In: The Journal of hygiene vol. 82 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	20.	Seroepidemiology of H1N1 influenza: the range of the affected population is widening. [electronic resource] by Pyhälä, R Aho, K Producer: 19830415 In: Medical biology vol. 60 Availability: No items available. Save to lists Add to cart (remove)

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Your search returned 65 results.