Table 1. Among passengers arriving on direct flights from affected countries, number of individuals who underwent entry screening^*, number indicated for the rapid influenza diagnostic test, number of positive cases, and number of individuals identified with Pandemic (H1N1) 2009 by RT-PCR tests at Narita Airport Quarantine Station.

	Individuals undergoing entry screening among arriving passengers on direct flights from affected countries (n)	Individuals indicated for rapid influenza diagnostic test** (n)	Individuals found to be influenza type-A positive by rapid influenza diagnostic tests (n)	Individuals identified with Pandemic (H1N1) 2009 by RT-PCR test (n)	Individuals identified with Pandemic (H1N1) 2009 among those indicated for rapid influenza diagnostic test (%)
Period I (in the cabin)
28 April–7 May	81,941	287	2	0	0.0
8–14 May	63,188	171	3	3	1.8
15–21 May	60,908	103	1	1	1.0
Total	206,037	561	6	4	0.7
Period II (at the quarantine station in the airport terminal)
22–28 May	61,525	95	4	3	3.2
29 May–4 June	63,757	65	1	0	0.0
5–11 June	66,871	44	4	2	4.5
12–18 June	73,543	40	1	0	0.0
Total	265,696	244	10	5	2.0

*Including transit passengers.

**Passengers with travel history to the affected countries who have ≥2 of 4 symptoms (1. nasal discharge or nasal obstruction, 2. sore throat, 3. cough, and 4. fever, or feeling feverish and chills) or have hyperthermia >38°C (directly measured by the tympanic or axillary temperature).