Kualitas bukti 4.75/5
Skor tinjauan delapan dimensi terhadap rubrik kualitas . Setiap dimensi dinilai 1–5.
- D1 Dasar sumber
- 5/5
- D2 Otoritas sumber
- 5/5
- D3 Aritmetika
- 5/5
- D4 Ketidakpastian
- 4/5
- D5 Cakupan
- 5/5
- D6 Prosa
- 5/5
- D7 Kejujuran persepsi
- 4/5
- D8 Kelengkapan peringatan
- 5/5
≈ Sama mungkinnya dengan
Dipersepsikan
«Cawan petri terapung» adalah bagian jurnalisme perjalanan yang andal yang muncul kembali setiap Januari saat musim pelayaran memuncak. Narasinya jelas — ribuan penumpang terkurung dalam kapal mandiri, berbagi ruang makan dan pegangan tangan, kadang terjebak di laut selama berhari-hari setelah penyakit menyebar. Liputan media tentang wabah profil-tinggi (Queen Mary 2, jalur pelayaran Celebrity, kapal Royal Caribbean) memperkuat kesan bahwa norovirus hampir merupakan fitur standar pelayaran ketimbang peristiwa sesekali. Tidak ada jajak pendapat ketat yang secara khusus menanyai warga Amerika tentang ketakutan penyakit-pelayaran, tetapi survei industri menunjukkan bahwa sebagian berarti dari orang yang menghindari pelayaran menyebut kekhawatiran penyakit. Ketakutan ini benar secara arah tetapi beberapa orde magnitudo lebih besar daripada yang didukung data.
Perkiraan kasar: Sebagian besar calon pelancong kapal pesiar percaya wabah penyakit itu umum — angka yang sering dikutip industri adalah bahwa 53 % warga Amerika yang menghindari pelayaran menyebut kekhawatiran penyakit atau wabah
Sumber: intuisi redaksi, bukan hasil survei
Aktual
~42 per 10.000 pelayaran mengalami wabah gastroenteritis yang dapat dilaporkan ke CDC (≥3 % penumpang sakit)
Semua pelayaran kapal pesiar di bawah yurisdiksi CDC VSP, 2006-2019 (kumpulan data MIDRS, n=37.258 laporan pengawasan AGE)
Tampilkan perhitungan
CDC Maritime Illness Database and Reporting System (MIDRS) mencatat 156 wabah yang dapat dilaporkan di antara 37.258 laporan pengawasan AGE dari 252 kapal pesiar selama 2006-2019: tingkat wabah per-pelayaran sebesar 0,418 %, dibulatkan menjadi ~42 per 10.000. Wabah yang dapat dilaporkan ke CDC mensyaratkan ≥3 % penumpang atau kru melaporkan gejala gastroenteritis akut kepada staf medis kapal — ambang batas yang dirancang untuk menangkap wabah sebenarnya ketimbang keluhan GI latar. Bagi seseorang yang melakukan 10 pelayaran sepanjang hidup, probabilitas berada di setidaknya satu pelayaran yang mengalami wabah adalah 1 − (1 − 0,0042)^10 ≈ 4,1 %. Ini adalah probabilitas berada di kapal selama wabah yang dapat dilaporkan, bukan probabilitas jatuh sakit secara pribadi: dalam satu pelayaran yang mengalami wabah, tingkat serangan penumpang yang khas adalah ~7 % (meta-analisis 45 wabah, Simou et al. 2024), sehingga probabilitas per-pelayaran untuk jatuh sakit secara pribadi dalam wabah yang dapat dilaporkan kira-kira 0,42 % × 7 % ≈ 0,03 %. Selama 59 tahun, total paparan pelayaran AS per orang dewasa (dirata-ratakan di semua orang dewasa AS, yang sebagian besar jarang atau tidak pernah berlayar) adalah ~1-2 pelayaran, memberikan probabilitas seumur hidup ~0,5-1,0 % berada di pelayaran yang mengalami wabah untuk populasi orang dewasa AS umum.
Catatan: Angka per-pelayaran 0,42 % hanya menghitung wabah yang dapat dilaporkan ke CDC —…
Angka per-pelayaran 0,42 % hanya menghitung wabah yang dapat dilaporkan ke CDC — yaitu di mana ≥3 % penumpang melaporkan gejala GI kepada staf medis kapal. Ambang batas ini dirancang untuk mendeteksi wabah sejati ketimbang tingkat keluhan latar; ia mengecualikan jumlah yang jauh lebih besar dari penyakit GI individu yang tidak meningkat menjadi peristiwa yang dapat dilaporkan. Angka yang lebih luas «penyakit GI penumpang apa pun per pelayaran» dari MMWR 2016 adalah 0,18 % dari semua penumpang, yang menyiratkan kira-kira 1 dari 50 pelayaran memiliki setidaknya satu penumpang yang melaporkan gejala GI — beban yang secara berarti lebih tinggi daripada metrik wabah-saja. Data pengawasan mencakup kapal yang menggunakan pelabuhan AS yang melapor ke CDC VSP; kapal yang beroperasi secara eksklusif di bawah bendera non-AS dengan standar pelaporan yang berbeda tidak tercakup. Tingkat wabah cenderung menurun dari 2006 hingga 2019 (tingkat per 100.000 hari-perjalanan turun hampir separuhnya), menunjukkan peningkatan kebersihan di kapal. Angka seumur hidup bersifat spesifik-aktivitas: ia berlaku untuk orang yang berlayar, bukan populasi orang dewasa AS umum.
Risiko terkait
Risiko lain dengan tema serupa — untuk menjelajahi ketakutan terkait.
Keracunan makanan di restoran
Berapa kemungkinan dirawat di rumah sakit akibat keracunan makanan setelah makan di restoran?
Penerbangan Antariksa (astronot)
Berapa kemungkinan meninggal sebagai astronot dalam misi penerbangan antariksa?
Mengemudi dengan obat penenang
Berapa peluang menyebabkan kecelakaan fatal karena mengemudi saat mengonsumsi obat resep penenang?
Mengemudi mengantuk
Berapa peluang menyebabkan kecelakaan fatal karena mengemudi tanpa tidur yang cukup?
Ngebut 20 % di atas batas
Berapa banyak mengemudi 20 % di atas batas kecepatan meningkatkan kemungkinan kecelakaan fatal?
Pilih penantang
The CDC Vessel Sanitation Program tracked 156 reportable gastroenteritis outbreaks across 37,258 cruise ship voyages between 2006 and 2019 — a per-voyage outbreak rate of about 0.42%, or roughly 1 in 238 voyages. A reportable outbreak requires at least 3% of passengers to report acute gastrointestinal symptoms to the ship’s medical staff; the threshold exists to distinguish true outbreaks from background noise. Norovirus caused more than 90% of outbreaks with a confirmed pathogen. The “floating petri dish” narrative captures something real, but the rate at which it materialises into a CDC-reportable event is considerably lower than most prospective cruisers estimate.
When an outbreak does occur, a meta-analysis of 45 outbreaks spanning 1990 to 2020 (Simou et al. 2024) put the weighted average passenger attack rate at 7% — meaning that during an outbreak voyage, about 1 in 14 passengers becomes clinically ill. Combining the per-voyage outbreak probability (0.42%) with the within-outbreak personal illness probability (7%) gives a per-voyage personal illness risk of roughly 0.03% from a reportable norovirus outbreak. For someone who takes 10 cruises across a lifetime, the probability of being on at least one outbreak voyage is about 4.1%; the probability of personally becoming sick in a reportable outbreak over those 10 voyages is closer to 0.3%. Both are non-trivial but far below the impression created by intermittent disaster coverage.
Surveillance rates did improve over the study period: GI illness rates per 100,000 travel-days fell from 32.5 in 2006 to 16.9 in 2019, according to the CDC Yellow Book, reflecting improvements in onboard sanitation, enhanced environmental cleaning protocols, and the Vessel Sanitation Program’s inspection regime. That downward trend is not automatic: shipboard gastroenteritis requires active suppression rather than passive improvement. The practical implication is that handwashing compliance among both passengers and crew is the dominant modifiable variable, not the vessel itself.
Fakta terkait
Penumpang kapal pesiar yang aktif berpeluang sekitar 1 dari 24 untuk berlayar saat terjadi wabah norovirus yang dilaporkan dalam sepuluh pelayaran. Tajuk 'cawan Petri terapung' jauh melampaui angka sebenarnya per pelayaran, beberapa orde besaran.
Buku besar klaim
Setiap angka di bawah ini adalah apa yang dilaporkan masing-masing sumber, dengan kutipan kata demi kata yang kami andalkan dan bagaimana kami sampai pada angka kami. Klik tautan mana saja untuk memverifikasi langsung.
2/5 sumber diverifikasi secara independen kata demi kata terhadap sumber terkutip
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[1] Centers for Disease Control and Prevention (MIDRS surveillance report) — Acute Gastroenteritis on Cruise Ships — Maritime Illness Database and Reporting System, United States, 2006–2019
Acute Gastroenteritis on Cruise Ships — Maritime Illness Database and Reporting System, United States, 2006–2019- Statistik
156 passenger outbreaks in 37,258 AGE surveillance reports from 252 cruise ships (0.42% per voyage); ~90% of outbreaks with known causative agents involved noroviruses- Kutipan
“"During 2006–2019, a total of 37,258 AGE surveillance reports were obtained from 252 cruise ships arriving at U.S. ports... During 2006–2019, VSP investigated 156 outbreaks among passengers and 16 outbreaks among crew... approximately 90% of cruise ship outbreaks with known causative agents involved noroviruses." ”
- Data sumber dari
- 2021-09-01
- Diakses
- 2026-05-09 · salinan arsip
- Perhitungan
- 156 outbreaks / 37,258 AGE surveillance reports = 0.4187% per voyage. Rounded to 0.42% (42 per 10,000) for the native numerator. MIDRS is the definitive longitudinal dataset for CDC-jurisdiction cruise ship illness surveillance; it is larger and more comprehensive than the earlier MMWR 2016 dataset (which covered 2008-2014 only).
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[2] CDC Morbidity and Mortality Weekly Report, January 8, 2016, Vol. 65, No. 1 — Acute Gastroenteritis on Cruise Ships — United States, 2008–2014
Acute Gastroenteritis on Cruise Ships — United States, 2008–2014- Statistik
133 outbreaks in 29,107 voyages (0.46% per voyage); 73,599,005 total passengers; 129,678 reported GI cases (0.18% of passengers)- Kutipan
“"Among 73,599,005 passengers on cruise ships during 2008–2014, a total of 129,678 (0.18%) cases of acute gastroenteritis were reported... Of 29,107 voyages with submitted AGE reports, 133 (0.46%) had outbreaks... Norovirus caused 92 (96.8%) of the 95 laboratory-confirmed GI outbreaks." ”
- Data sumber dari
- 2016-01-08
- Diakses
- 2026-05-09 · salinan arsip
- Perhitungan
- The MMWR 2016 dataset (2008-2014) gives 0.46% per voyage vs. the MIDRS (2006-2019) 0.42%. The rates are consistent; we use the larger MIDRS dataset as primary. The 0.18% of all passengers experiencing any GI illness per voyage — not just in outbreak voyages — represents the broader background illness rate that is two to three times higher than the outbreak-only figure.
- Independensi
- MMWR 2016 is an earlier CDC publication drawing on the same VSP surveillance system as MIDRS. The two datasets partially overlap (2008-2014) but cover different time windows and use the same outbreak definition. They are corroborating rather than independent estimates.
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[3] Centers for Disease Control and Prevention, Travelers' Health Yellow Book — Cruise Ship Travel — CDC Yellow Book 2024 Terverifikasi
Cruise Ship Travel — CDC Yellow Book 2024- Statistik
Rates of GI illness fell from 32.5 to 16.9 per 100,000 travel days (2006-2019); average of 12 norovirus outbreaks annually on US-port cruise ships (2006-2019)- Kutipan
“"During 2006–2019, rates of GI illness among passengers on voyages lasting 3–21 days fell from 32.5 to 16.9 cases per 100,000 travel days... On cruise ships, >90% of GI illness outbreaks with a confirmed cause are due to norovirus... between 2006–2019, an average of 12 norovirus outbreaks occurred annually on international cruise ships using U.S. ports." ”
- Data sumber dari
- 2024-05-01
- Diakses
- 2026-05-09 · salinan arsip
- Verifikasi
- Kutipan diambil ulang secara independen dan dikonfirmasi kata demi kata terhadap sumber terkutip selama audit pendasaran kami.
- Perhitungan
- The 16.9 per 100,000 travel-days figure (2019, most recent available) translates to roughly 0.12% of passengers per 7-day voyage experiencing any GI symptoms reported to medical staff. This is lower than the overall 0.18% figure because rates trended downward over the surveillance period. The Yellow Book is the primary clinical reference for US travel medicine practitioners advising cruise passengers.
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[4] Eurosurveillance, Vol. 22, Issue 45, 2017 — Mouchtouri, Verykouki, Zamfir, Hadjipetris, Lewis, Hadjichristodoulou — Gastroenteritis outbreaks on cruise ships: contributing factors and thresholds for early outbreak detection
Gastroenteritis outbreaks on cruise ships: contributing factors and thresholds for early outbreak detection- Statistik
9 outbreaks in 760 cruises (1.18%) on 5 European ships; attack rate 23.9% in outbreak vs 1.4% in non-outbreak voyages; overall incidence 2.81 per 10,000 traveller-days- Kutipan
“"The overall incidence rate of AG was 2.81 cases per 10,000 traveller-days (95% CI: 0.00–17.60)... nine outbreaks of AG occurred... in 760 cruises; 1.18%... The attack rate was 14.05 (95% CI: 0.00–55.08) per 10,000 travellers for non-outbreak cruises and 238.80 (95% CI: 0.00–738.70) per 10,000 travellers for outbreak cruises." ”
- Data sumber dari
- 2017-11-09
- Diakses
- 2026-05-09 · salinan arsip
- Perhitungan
- This European fleet dataset uses a lower outbreak threshold than the CDC's 3% rule and covers only 5 ships, so its 1.18% outbreak rate is not directly comparable to the CDC's 0.42-0.46%. It is included as a peer-reviewed independent corroboration of the per-voyage outbreak order of magnitude. The 2.81 per 10,000 traveller-days incidence rate translates to roughly 0.20% of passengers experiencing GI illness per 7-day voyage, close to the CDC's 0.18% all-passengers figure.
- Independensi
- Mouchtouri et al. use European cruise fleet data with ship-level surveillance reporting, independent of the US CDC VSP system. The methods and fleet are distinct, making this a genuine independent corroboration.
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[5] Eurosurveillance, 2024 — Simou et al. — Systematic literature review and meta-analysis on preventing and controlling norovirus outbreaks on cruise ships, 1990 to 2020 Terverifikasi
Systematic literature review and meta-analysis on preventing and controlling norovirus outbreaks on cruise ships, 1990 to 2020- Statistik
45 outbreaks on 26 cruise ships (1990-2020); weighted average passenger attack rate 7% (95% CI 5-9%); crew attack rate 2%- Kutipan
“"weighted average of prevalence (attack rate) for passengers of 7% (95% CI: 5.00–9.00)... Data from 45 outbreaks on 26 cruise ships from 1990 to 2020 were identified... Attack rates increased as the length of the cruise voyage increased, ranging from 3.57% for cruises under 7 days to 7.36% for 7–10 days and 10.59% for cruises 11+ days (Table 2)." ”
- Data sumber dari
- 2024-03-01
- Diakses
- 2026-05-09 · salinan arsip
- Verifikasi
- Kutipan diambil ulang secara independen dan dikonfirmasi kata demi kata terhadap sumber terkutip selama audit pendasaran kami.
- Perhitungan
- The 7% weighted average attack rate within outbreak voyages is the multiplier used to convert per-voyage outbreak probability (0.42%) into per-voyage personal illness probability (0.42% × 7% ≈ 0.03%). This is the primary source for the within-outbreak attack rate; it synthesizes 45 outbreaks spanning 30 years and is independent of the CDC VSP surveillance pipeline.