[Leish-l] Fwd: infectivity or infectiousness?

[Carlos Costa]

Fernando Narvaez's response sounds to be the best about the issue of
infectivity versus infectiousness.

---------- Forwarded message ----------
From: Fernando Andrade Narvaez <fandrade47 at gmail.com>
Date: 2017-07-25 19:37 GMT-03:00
Subject: Re: [Leish-l] infectivity or infectiousness?
To: Carlos Costa <chncosta at gmail.com>


Dear Carlos,
Please review the Biology Online Dictionary. I agree that is very important
to have a clear idea of their meaning  and knowledge to employ them
accurately. *Infectivity*: is related to the causative infectious agent, in
case of leishmaniacs we are talking of *Leishmania* spp. It is usually used
to talk about the capability of *Leishmania* spp. to enter the macrophages
and  colonize them, therefore entering, surviving and multiplying in a
susceptible host. Thus is used to talk of the ability of the pathogen (your
number 3 option). *Infectiousness* "the state or quality of being
infectious" derive from *Infectious*  term used to refer an *infectious*
disease (able to be passed from one person,anmal to other in vector borne
disease through the insect vector), an *infectious* patient (able to pass a
diseases of one person or animal to other), *infectious *period (used
mainly for viral diseases). Thus infectiousness is used to talk about the
host or sand fly ability to pass or transfer (options 1 & 2). Infectiosity
is a synonym of infectiousness.
Best regards,

Dr. Fernando J. Andrade Narváez
Laboratorio de Inmunología
Centro de Investigaciones Regionales "Dr. Hideyo Noguchi"
Universidad Autónoma de Yucatán
Ave. Itzáes No. 490x59 CP 97000
Mérida, Yucatán, México
Tel.: 999 924-6412 ext. 1156 y 1155
Fax: 999 923-6120
E-mails: anarvaez at correo.uady.mx, fandrade47 at gmail.com

Fernando J. Andrade-Narvaez, MD, PhD
Immunology Laboratory
Centro de Investigaciones Regionales "Dr. Hideyo Noguchi"
Universidad Autónoma de Yucatán,
Ave. Itzáes No. 490x59 CP 97000
Mérida, Yucatán, México
Tel.: 52 999 924-6412 ext. 1156 & 1155
Fax: 52 999 923-6120
E-mails: anarvaez at correo.uady.mx, fandrade47 at gmail.com




2017-06-24 8:57 GMT-05:00 Carlos Costa <chncosta at gmail.com>:

> sorry, the last one should be infectiosity (wiki).
>
> 2017-06-24 10:21 GMT-03:00 Carlos Costa <chncosta at gmail.com>:
>
> > Dear fellows,
> >
> > Are there any hints on where or when to use infectivity, infectiousness
> or
> > infectiousness?
> > 1) Talking about the host ability to transmit a pathogen.
> > 2) Talking about the sand fly ability to transmit a pathogen
> > 3) Talking about the pathogen ability to be transmitted.
> >
> > Are they synonyms? Can we use any form in any situation?
> >
> > I looked at the web but could not find anything sharp about this.
> >
> > Cheers,
> >
> > Carlos.
> >
> > --
> > Carlos H. N. Costa, MD, DSc.
> > Chefe/Head
> > Departamento de Medicina Comunitária
> > Centro de Ciências da Saúde
> > Coordenador/Coordinator
> > Laboratório de Leishmanioses - LabLeish
> > Instituto de Doenças Tropicais Natan Portella
> > Universidade Federal do Piauí
> > Rua Artur de Vasconcelos 151-Sul
> > 64001-450 Teresina-PI
> > Brazil
> > Telephones: +55 86 3222-4377 <+55%2086%203222-4377>
> <+55%2086%203222-4377> (W),
> > +55 86 3221-3062 <+55%2086%203221-3062> <+55%2086%203221-3062> (W),
> > +55 86 3237-1075 <+55%2086%203237-1075> <+55%2086%203237-1075> (R).
> >
> >
> > Aviso: As informações contidas nesta mensagem são CONFIDENCIAIS,
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> > Warning: This message is meant only for the intended recipient of the
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> from
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> >
>
>
>
> --
> Carlos H. N. Costa, MD, DSc.
> Chefe/Head
> Departamento de Medicina Comunitária
> Centro de Ciências da Saúde
> Coordenador/Coordinator
> Laboratório de Leishmanioses - LabLeish
> Instituto de Doenças Tropicais Natan Portella
> Universidade Federal do Piauí
> Rua Artur de Vasconcelos 151-Sul
> 64001-450 Teresina-PI
> Brazil
> Telephones: +55 86 3222-4377 <+55%2086%203222-4377> (W),
> +55 86 3221-3062 <+55%2086%203221-3062> (W),
> +55 86 3237-1075 <+55%2086%203237-1075> (R).
>
>
> Aviso: As informações contidas nesta mensagem são CONFIDENCIAIS, protegidas
> pelo sigilo legal, por direitos autorais e destinadas exclusivamente à
> pessoa ou organização para a qual a mensagem foi destinada.
> Warning: This message is meant only for the intended recipient of the
> transmission.  It is forbidden any unauthorized use, alteration,
> reproduction, and distribution. If you are not the correct recipient,
> please notify us immediately by return e-mail and delete this message from
> your system.
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>




-- 
Carlos H. N. Costa, MD, DSc.
Chefe/Head
Departamento de Medicina Comunitária
Centro de Ciências da Saúde
Coordenador/Coordinator
Laboratório de Leishmanioses - LabLeish
Instituto de Doenças Tropicais Natan Portella
Universidade Federal do Piauí
Rua Artur de Vasconcelos 151-Sul
64001-450 Teresina-PI
Brazil
Telephones: +55 86 3222-4377 (W),
+55 86 3221-3062 (W),
+55 86 3237-1075 (R).


Aviso: As informações contidas nesta mensagem são CONFIDENCIAIS, protegidas
pelo sigilo legal, por direitos autorais e destinadas exclusivamente à
pessoa ou organização para a qual a mensagem foi destinada.
Warning: This message is meant only for the intended recipient of the
transmission.  It is forbidden any unauthorized use, alteration,
reproduction, and distribution. If you are not the correct recipient,
please notify us immediately by return e-mail and delete this message from
your system.