Chanjo ya typhoid ya sindano ni chanjo ya polysaccharide (Vi capsular polysaccharide) isiyohai inayotoa kinga dhidi ya ugonjwa wa homa ya matumbo (typhoid fever) unaosababishwa na bakteria Salmonella enterica serovar Typhi. Aina kuu ya chanjo inayotumiwa ni Typhim Vi (Sanofi Pasteur). Chanjo mpya ya Vi-conjugate (Typbar-TCV ya Bharat Biotech) pia imepatikana na imeidhinishwa na WHO mwaka 2017. Homa ya matumbo ni tatizo kubwa la afya ya umma katika nchi za Afrika Mashariki. Tanzania, Kenya, na U
Pregnancy: Safe if travel warrants vaccination.
Injectable typhoid ViCPS (Vi polysaccharide) vaccine is an inactivated subunit vaccine and is considered safe during pregnancy when the risk of typhoid fever warrants vaccination.
Limited formal studies in pregnancy, but extensive post-marketing experience with no safety signals.
Preferred over oral Ty21a (live vaccine) during pregnancy.
WHO recommends vaccination for pregnant travelers to highly endemic areas (South Asia in particular).
Breastfeeding: Safe — no restrictions.
Injectable typhoid ViCPS vaccine is inactivated and poses no risk during breastfeeding. No modification to breastfeeding or vaccination schedule is required.
Pediatric use:
Injectable ViCPS: licensed from 2 years of age.
Children <2 years: ViCPS is not effective due to T-cell-independent polysaccharide response immaturity.
Typhoid conjugate vaccine (TCV, e.g., Typbar-TCV): licensed from 6 months — preferred for young children in endemic settings (WHO prequalified).
Single 0.5 mL IM dose. Revaccinate every 2–3 years if continued exposure.
Geriatric use:
No specific age-related concerns. Standard dose and schedule apply.
Immune response may be slightly reduced in elderly adults, but clinically protective levels are typically achieved.
Food and water precautions remain essential regardless of vaccination status.
Hakuna data ya ratiba inayopatikana.
Unajua chanjo unayohitaji? Vizuri. Hujui? Tuambie tu unaenda wapi — tutapata chanjo zinazofaa na kliniki. Bure, bila masharti.
Maudhui katika ukurasa huu ni kwa madhumuni ya habari na elimu pekee. Hayaundi ushauri wa kitabibu, utambuzi, au mapendekezo ya matibabu. Ikiwa una wasiwasi wa kiafya, wasiliana na mtaalamu wa afya aliyeidhinishwa. Medova si mtoa huduma za matibabu.
Masharti kamili ya matumiziCompare the two typhoid vaccine options for travelers: oral Ty21a (Vivotif) vs injectable Vi polysaccharide. Learn the differences in efficacy, schedule, side effects, cost, and which is better for your trip.